Roehampton Garden Society


Purple Sprouting Broccoli – the winter marvel..

Nothing much will grow in the cold of winter – after the brussels sprouts have vanished we are firmly in the ‘hunger gap’. But purple sprouting broccoli is extremely hardy, tolerating temperatures as low as -12°C. It responds to even a slight warmth and produces flowering shoots or ‘sprouts’ from February to April when there’s very little else around. Two or three large plants can feed your family. Well worth while planting some now for next year….

Here’s a summary of how to do it, but the best advice can be found from the RHS here

Sprouting Broccoli Site 3

Sow from April to mid-June for harvesting from January to May. Begin in a 9cm pot. Don’t sow too many – just enough to give you 3 or 4 plants securely.

When about 10 cm tall transplant. If you have the space free this can be their final growing spot. However, these plants will take up a lot of space. If you don’t have the space free until the autumn, you can transplant into a large, tall pot and plant out finally as late as September.

Like other brassicas, purple-sprouting broccoli thrives in a fairly heavy, alkaline soil. Avoid an exposed site, where the wind will buffet the stems and loosen the soil around the roots. Fork the soil over, removing stones and perennial weeds. Add some organic matter to improve moisture retention and texture. You may need to add lime if your soil is acidic. Brassicas dislike loose soil, so firm lightly with your foot.

Harvest each flowering shoot carefully – others should grow to replace them. Cut carefully and your crop will last for weeks.


Wisley Trip Roundup 2024

A group of allotmenteers enjoyed a trip to RHS Wisley on 24th April.

It was a tad chilly but thankfully dry and the cold weather ensured the rhododendrons and tulips were still looking magnificent.


The trial beds of tulips were stunning as were the swathes of Camassias rolling down the hill from the World Food Garden. It was interesting to see that, as on our own plots, planting out here had been delayed by the cold wet spring. I’m sure that they, like us , are eagerly awaiting some warmer days and nights and the chance to get those veggies in the ground.


We elected to join a volunteer walk which proved very informative and took us to an area of garden none of us had explored before. We discovered a woodland walk with the most beautiful rhododendrons,  a stumpery with ferns unfurling and around the corner a TRex lurking in amongst the tree ferns!


We rounded off the day with a visit to the plant shop … who could resist… arriving back in Roehampton with arms full of goodies. It was great fun … come and join us in 2025!

Many thanks to organiser Shan Karwatowska

Pictures by Shan Karwatowska and Jane Powell