Hi Bulb Buddies,

I would like to say a huge thank you to all the schools who have uploaded their weather data to the website. For anyone new to the Blog, we have 175 schools across the country taking weather readings for every day they are in school from November to March! Our Super Scientists are exploring the effects of weather on the flowering dates of spring bulbs! 

The MET Office has described November 2024 as a month of two halves, because the weather for the first two weeks was mild and relatively warm but the following two weeks were wet, windy and even snowy! This is reflected in your comments; at the beginning of the month many of you commented on not having much rain. In the second half there were reports of lots of rain and some snow! This was the snowiest November since 2010!

Only one school has mentioned Storm Bert, but this was the cause of lots of the rainfall that you reported. You may have seen lots of discussions around flooding and weather warnings in the news. You can learn more about weather warnings here: Weather Warnings And more about named storms here: Weathering the Storm

Storm season runs from September to August, which aligns nicely with our investigation. Storm Bert was the second named storm this storm season. We've also had storm Ashley and storm Conall. You can see the names for this seasons storms in the image on the right. Last storm season was the stormiest since naming UK storms began in 2015. Last year we had 12 named storms and by this time last year there had already been four named storms and the fifth was on it's way! 

Lets take a look at your comments to see how the project is going in schools across the UK. I'm excited to report that many schools have noticed some green shoots in their pots!

Messages to Professor Plant

Eveswell Primary
Comment:
Hello professor, sorry that we could not send u this data until now. I am in year six now so I'm going to move on to high school so I probably won't see you ever again so bye for now. I hope you see this message if not that is okay. Please can you reply to me so I know that our data has helped you.

Professor Plant's Response:
Thank you, Josh! Your data has been extremely helpful, and I want to say a big thank you for all of the work you have done on this project. Please thank everyone at your school that has worked on this as well. I’m sure you will have a fantastic time at your next school!

Ysgol Pennant
Comment:
Ar y dydd Mawrth aeth yr ysgol i wylio sioe yn theatr Hafren felly doedden methu gofnodi.

Professor Plant's Response:
Diolch yn fawr Ysgol Pennant. It’s okay to miss a day—your effort in recording other days is very much appreciated. Thank you for letting me know. 

Weather Observations

Stanford in the Vale Primary School
Comment:
Sorry for the confusion on the 18-22 of November; this is the actual date for last week's temperature.

Professor Plant's Response:
Thank you for clarifying, Stanford Bulb Scientists. Accurate records are important, and your efforts help us greatly. Keep up the great work!

St Joseph's Cathedral Primary (Swansea)
Comment:
On the 28th, the temperature was not read correctly, so the real temperature was 4 to 8 degrees Celsius. The chart would not let me put two numbers, so I have to make a note. I am not sure about this, but on the 26th, a Tuesday, the rainfall was 49 mm, which I am not sure is correct. Sorry if this reading is wrong.

Professor Plant's Response:
Thank you for adding these detailed notes with your readings Mammals! It’s okay if readings are sometimes uncertain—it’s all part of learning science. You’ve shown good scientific skills by questioning your readings and noting your thoughts on these. 

Henllys Church in Wales School
Comment:
All good big change in rainfall.

Professor Plant's Response:
Great observation! Sudden changes in rainfall can tell us a lot about the weather patterns. Keep an eye on those gauges!

Ysgol Llanddulas
Comment:
We saw more rain this week.

Professor Plant's Response:
Thank you, Roaring Reptiles! It sounds like you’ve had some wet weather—perfect for bulbs to grow!

Bryn Deri Primary
Comment:
There has been a lot more rain recently, especially on the weekend of the 23rd and 24th of November—which is not shown on our data (the weekend). We have also had some frosty mornings. Our bulbs have begun to shoot. 

Professor Plant's Response:
Wonderful observations, Bryn Deri! Rain and frost make for an interesting combination. Keep watching those bulbs—they’re on their way!

Cornist Park C.P
Comment:
Monday: It is cloudy today. 
Tuesday: The weather is damp and cloudy.
Wednesday: There is lots of frost today.
Thursday: It is very cold and lots of white frost.
Friday: It is cold and sunny.

Professor Plant's Response:
Thank you, Cornist Park team, for such detailed daily updates! It’s great to see how all of you are working together to capture the weather conditions.

Bwlchgwyn Primary School
Comment:
This week we were off school for 3.5 days because of heavy snowfall and freezing temperatures. Even today, we cannot accurately look at the rain gauge because it is just so full of snow. We have managed to record the temperatures, but our gauge for the 4 days was just overflowing with snow.

Professor Plant's Response:
Thank you, Fish Group! Snowfall can make data collection tricky, but you’ve done a brilliant job despite the challenges. If this happens again you could bring the rain gauge into the classroom and wait for the ice or snow to melt before taking your rain readings. You could compare the reading before and after it melts too! 

Langbank Primary School
Comment:
Snowed on Friday.

Professor Plant's Response:
How exciting! Snow makes everything look magical—thank you for sharing this detail.

Doonfoot Primary School
Comment:
VERY WET on Monday; okay weather for the rest of the week.

Professor Plant's Response:
It sounds like Monday was a challenging start to the week, but you’ve captured the variation in weather in your comments. Thank you!

Plant Growth Observations

Alloway Primary School
Comment:
Some bulbs have started to grow.

Professor Plant's Response:
That’s fantastic news! Well done, Alloway Primary. Keep monitoring their progress as they continue to grow.

St Mary’s Primary School - Newry
Comment:
There was lots of rainfall over the weekend. Extreme frost and fog and a bit of snow.

Professor Plant's Response:
It sounds like you’ve had some wintry weather! Great job keeping track. Frost and snow can be challenging for bulbs, but they’re tough little plants.

Ysgol Tycroes
Comment:
We had snow this week, but not enough to stick. Our mystery plants have started to grow; we can see stalks with small spikey leaves on them both.

Professor Plant's Response:
How exciting that you’ve seen some snow and that your plants have started to grow! Keep watch over your plants to see what happens next. 

St Michael’s RC Primary
Comment:
We are enjoying taking care of the plants. We haven’t had much rain.

Professor Plant's Response:
Fantastic work, St Michael’s. I’m glad to hear that you are enjoying the project and that your plants are in good hands!

On the 1 December 1994 a tree was planted in the Gorsedd Gardens in front of National Museum Cardiff.

The tree was planted on World AIDS Day 1994 as a memorial to those who have died of AIDS in Wales. Since its planting it has been known by a few different names including the Tree of Life and the Red Ribbon Tree, and has become the focus for yearly World AIDS Day commemorations on 1 December each year, with people attaching red ribbons to the tree.

The tree was planted by Mike Phillips and Martin Nowaczek (co-founders of Cardiff Body Positive), along with the Lord Mayor and Lady Mayoress of Cardiff. At the planting a balloon was released for all those who have died of AIDS in Wales. By the end of 1994 (the year the tree was planted) there had been 10,304 reported AIDS cases and 7,019 known deaths in the UK (with 141 cases and 118 of these deaths in Wales).

Speaking about the planting of the tree Mike recalls that “I was around 25 when we planted the Red Ribbon Tree. We’d opened the Cardiff Body Positive drop-in-centre the previous day and Martin, already ill, was feeling tired. He died less than 6 months later”.

The plaque next to the tree was rededicated in 2021 and the original plaque donated to St Fagans National Museum of History. It was displayed at St Fagans in 2022/23 as part of the exhibition Wales is… remembering Terrence Higgins.

The Cardiff Body Positive collection recently donated to Amgueddfa Cymru is closely associated with the tree as its co-founders Mike and Martin planted the tree in 1994.

Cardiff Body Positive was founded in 1993 and were based at 57 St Mary Street, Cardiff. It supported people living with HIV and AIDS from across Cardiff and south Wales, and was one of a number of Body Positive groups around the UK. Their drop-in centre opened the day before the Tree of Life was planted, and they later organised what they called a ‘Celebration of Life’ at the tree – celebrating the lives lost to AIDS and showing solidarity and support to those living and affected with HIV/AIDS. The Cardiff Body Positive newsletters in the collection contain some obituaries for those who died of AIDS in Wales including its co-founder, Martin.

Cardiff AIDS Helpline was also operating about this time as well as the South Glamorgan AIDS Network. It was Cardiff AIDS Helpline that organised the first Candlelight Memorial to be held in Wales, which was held on 1 December 1993 on the steps of National Museum Cardiff, with almost 600 people attending. They held another World AIDS Day Candlelight Memorial in 1994 on the evening following the planting of the tree.

Today there is still no cure for HIV, but effective treatment now means that people with HIV can’t pass the virus on and can live long and healthy lives. The Welsh Government HIV Action Plan as well as organisations and networks such as the Terrence Higgins Trust, and Fast Track Cymru are working towards preventing new infections and eliminating stigma by 2030.

Hi! I’m Sophie, a Biological Science student at Cardiff University. Currently, I’m undertaking a Profession Training Year within the Mollusca section in the Natural Sciences Department at Amgueddfa Cymru under the supervision of curator Anna Holmes. My passion for zoology has inspired me to pursue opportunities that deepen my understanding of the animal kingdom. I love learning about different species and their unique roles within ecosystems. While Malacology is a new field for me, I am eager to explore the world of molluscs and broaden my zoological knowledge.  

During my placement year I will be working with Anna to research a non-native species of bivalve, Potamocorbula amurensis known commonly as the Amur River clam. Specimens recently collected from the Outer Thames Estuary have come to us for identification confirmation and, if correct, it will mark the first record of P. amurensis in the UK. Native to China, Japan and Korea, Potamocorbula amurensis has been previously recorded in San Francisco Bay, where it spread rapidly, and more recently in Belgium. One of the most common ways bivalves are introduced to new environments is through ballast water from ships. Ships take in water in one area, along with small organisms, and then release it in another, leading to the introduction of non-native species. 

Over the past two months at Amgueddfa Cymru, I have been engaged in a variety of tasks that have allowed me to gain valuable experience and knowledge in malacology. In preparation for our report, I have been researching previous studies on Potamocorbula amurensis, particularly focusing on its invasions in San Francisco and Belgium. I have been using a light microscope and Helicon Focus software to photograph bivalves from the museum’s collections, some of which are over 100 years old. Specifically, I have been imaging the specimens of possible Potamocorbula amurensis from the Thames, as well as specimens of that species and similar species that were already in the museum’s collection, taken from their native habitat of Asia. I am comparing them with the Thames specimens to provide a positive identification. 

Additionally, I have been imaging other species from the same family, Corbulidae, also known as the basket clams, to examine the differences between similar species. In the UK, the only native species of Corbulidae is Varicorbula gibba, and it’s usually found burrowed in coastal mudflats or estuaries, hiding just below the surface. These shells are very small and must be imaged carefully, from several angles, ensuring the lighting emphasises the specific features that aid in identification. The right valve is notably larger than the left, earning it the nickname “overbite clam”. Each valve features a tooth, an important characteristic for identifying bivalves. 

Recently, ethanol preserved samples of Potamocorbula amurensis have been collected from the Thames. In the next few weeks, I will be analysing the DNA of these specimens, with the hope of discovering if the UK population came from the San Francisco introduction or the native population in China.   

 Understanding the presence and spread of non-native species like Potamocorbula amurensis can have significant ecological and economic implications. Invasive species often disrupt local ecosystems, outcompeting native species, altering habitats, and affecting biodiversity. Some non-native species (around 10-15% of them) can become invasive and by identifying the pathways of introduction and tracking the spread of Potamocorbula amurensis, we can better inform conservation strategies and management practices to mitigate its impact on local environments. 

In addition to my research project, I’ve also been given the opportunity to gain hands-on experience in curating shell collections.  I have been sorting through the CCW – Lloyd James shell collection, cataloguing it into the museum’s Mollusca database. This process involves carefully organising and documenting the specimens, ensuring accurate records for future reference and research. Working with this collection has given me the chance to appreciate the incredible diversity of British molluscs and observe firsthand how intricate and beautiful their shells can be. One standout for me has been Palliolum striatum a stunning scallop species with vibrant colouring and beautifully ridged patterns. 

My time at Amgueddfa Cymru so far has been nothing short of wonderful. The staff in both Mollusca and Natural Sciences as a whole have been incredibly welcoming and supportive. They have generously shared their expertise with me, not only expanding my knowledge, but also deepening my appreciation for all the great work the museum does. I’m truly grateful for this opportunity and excited for what the rest of my placement will bring. I look forward to continuing my work here and learning even more from the incredible team. 

Hi Bulb Buddies,

I want to say a big thank you to all of the participating schools who worked hard planting bulbs for the project. Together we planted over 18 thousand bulbs across the UK and from the photos I’ve seen, it looks as though everyone had great fun doing it! 

All schools taking part in the project will be collecting weather data from 4 November until 28 March. They will be uploading these records regularly to the Amgueddfa Cymru website, along with comments and weather observations. We'll be learning a lot together over the school year. 

Resources are available on the website that explore different aspects of the project, including ideas for additional experiments and guides to making short videos for the Bulbcast competition!  

I'll be sure to share more photos and comments from schools to the Blog in the coming weeks. 

Keep up the good work Bulb Buddies,

Professor Plant

The Urban Meadow at National Museum Cardiff is a little haven for pollinators in the city centre. On a summer’s day it is teeming with bees, hoverflies, grasshoppers, ladybirds and craneflies. 

Monitoring the meadow, and managing it for wildlife, is vital to make sure it continues to provide an environment where these creatures can thrive. Mowing too frequently, or not removing ‘problem plants’ like brambles and trees, could damage the harmonious interplay between different types of plant.

This year, with help from Greening Cathays and support from the National Heritage Lottery Innovation Fund, we’ve been trialling new methods of surveying the plant life so that Volunteers and non-specialist Museum staff can help us keep track of the meadow biodiversity. This will help us to manage the meadow in the future.

As well as contributing to our understanding of the meadow, our staff and volunteers have reported the well-being benefits of working outdoors:

“If I could, I would stay out here all day, it’s such a nice environment to be in”.

“I feel like I’m doing work – but it doesn’t have the stress of work. It’s the perfect balance”.

Staff and volunteers have also felt more motivated or confident to get involved outside of work:

“I have patch of grass at home, I’m now on a mission to rewild it. I really want to know how to do that, I feel more motivated now I’ve seen what can be there”.

"It’s quite empowering feeling you've recorded data that will be used, makes me want to get involved in more things like this".

What did we find?

On the Urban Meadow plants such as Common Bird’s-foot-trefoil (Lotus corniculatus), Oxeye Daisy (Leucanthemum vulgare), Lady’s Bedstraw (Galium verum) and Red Clover (Trifolium pratense) add colour to this part of the city every summer. The appearance of the meadow changes subtly throughout the season, depending on which plants are in flower.

Several native grasses, including Meadow foxtail (Alopecurus pratensis), Cock’s-foot (Dactylis glomerata) and Timothy (Phleum pratense) grow on the meadow.  However, we do not want the grasses to outcompete other species.

The vegetation surveys demonstrated that, although the meadow is relatively small, there is a mosaic of plant communities, reflecting small-scale differences in environmental factors.  For example, we found that one corner of the meadow is damper than the other three corners and a charmingly named grass called Yorkshire-fog (Holcus lanatus) has dominated here. 

To let other flowering plants, which attract insects for pollination, have some space to grow we are going to invite staff to help with sowing seeds of Yellow-rattle (Rhinanthus minor) this autumn. 

This annual plant is a parasite on grasses (Poaceae) meaning it gets nutrients by penetrating the roots of the grass, and restricting the its growth. Many meadows may need an application of Yellow-rattle seed this autumn because the grasses have coped better with the hot weather than the smaller brightly coloured plants. The Yellow-rattle seeds are sown in the autumn because they need to sit in the soil during the winter and experience the cold to germinate. The yellow flowers appear in spring, followed by seed pods which ‘rattle’.

We will also create training opportunities for staff and volunteers to help with scything the meadow to get the ground ready for the next year.

The Urban Meadow hasn’t just been an opportunity to increase biodiversity at National Museum Cardiff, it has helped people too. Cultivating a wildflower meadow takes years but is a testament to the resilience and ever-changing charm of the natural world. We hope to continue working with staff and volunteers to care for our meadow, for the benefit of people and plants.