Sow sweet peas in a cool greenhouse for an early display next year. Soften the seed coat, by putting the seeds between two layers of kitchen towel on a dinner plate. Dampen the towel, drain off excess water, sow those that start to swell or sprout, usually after about 48 hours. Leave any others a […]
It is interesting how different each year can be. In 2023, I had no problems with red spider mite, whitefly, or blossom end rot on the tomatoes; I cannot recall when that last happened, or if it has ever happened at all. It is down to a cool summer where temperatures have been warm enough […]
With it is warm and sunny, sow trays, pots or old growing bags with ‘cut and come again crops’ to harvest through autumn and into winter like Land cress, oriental salads, like pak choi, mizuna and mibuna greens, lettuce, lamb’s lettuce, carrots for seedlings, chicory and radish. You can also use what’s left from earlier […]
If you’d like to eat new potatoes at Christmas (or earlier), it is time to plant them now, when late season, second early potatoes, stored in temperature-controlled conditions are sent out from late July to early August. They can easily be grown in pots. Stand two or three tubers on a 12.5cm layer of multipurpose […]
Once tomatoes have set their fourth or fifth truss of fruit, cut off the main stem one leaf above the terminal truss, so the moisture and nutrients are focussed on swelling and ripening the fruit. Tap the open flowers around mid-day when the pollen is dry to encourage further pollination and tie the stems to […]
Now that greenhouse tomatoes are growing rapidly, remove the side shoots of ‘cordon’ varieties, as they appear, using your finger and thumb, to create a single productive stem to train up the cane. Keep the compost constantly moist using tepid water, checking regularly, particularly if you use growing bags as the compost dries out rapidly […]
It is important to ‘harden off’ or acclimatising greenhouse grown plants to outdoor conditions before finally planting them out. Move them straight from greenhouse to garden and they can suffer from shock, particularly in cooler weather; most recover but it checks growth, causes yellowing and some vegetables may ‘bolt’ or run to seed. ‘Hardening off’ […]
Sow broad beans, spinach, cabbage, calabrese, kohlrabi, cauliflower, lettuce, peas for pods and shoots, onions, salad onions, turnip, radish, beetroot, leeks, leaf beat and chard under glass in pots or modules for later transplanting outdoors. Sow bunching onions, beetroot and round rooted carrots in pots for later transplanting outdoors. From the middle of the month […]
It’s a good time to repot citrus just before they start into growth. To keep my lemon tree at a manageable size, the old compost is teased gently from the roots, which are then trimmed back by about 1/3 and repotted into peat free John Innes no 2 mixed with 20% horticultural grit for drainage. […]
There are two important jobs for the greenhouse at this time of year. From February onwards, it’s time to sprout (or ‘chit’) first and second early potatoes and sowing tender, long season crops like tomatoes. Gardeners’ ‘chit’ potatoes so they are already growing when planted, – it’s a chance to get ahead. The technique is […]
If you didn’t sow your broad beans last autumn, January is the ideal time to get sow seeds in the greenhouse for an early harvest. Sow them on edge 5-8cm apart and 2.5cm deep in deep trays of peat free multipurpose compost or individually in 7.5cm small pots. Put them in a cool frost-free greenhouse […]
Start Amaryllis bulbs into growth, watering sparingly at first; just trickle a little tepid water around the bulb, then increase the amount as growth appears. Once they are actively growing, keep them constantly moist but not waterlogged and take care not to get the growth tip wet. They need temperatures around 20C so move them […]
