It has continued to be a cold spring, this year. Warm days followed by clear nights mean that temperatures plummeted as any heat absorbed from the sunshine radiated from the ground overnight. Thank goodness we can get ahead in the greenhouse. Most of my dahlias are overwintered under a heavy mulch in the garden but […]
At this time of year, a weather beating greenhouse is invaluable. Hot sunny days, followed by clear, cold nights means that the remains wet and cold, so it is too early for sowing outdoors directly into the soil. It’s long been accepted that parsnips are sown outdoors in February but the truth is that sowing […]
From February onwards, it’s time to sprout (or ‘chit’) first and second ‘early’ potatoes. Put your potatoes in a tray or egg box with the ‘rose’ end, where there is the greatest density of ‘eyes’ or buds, at the top, keep them at about 7C (45F), then, after four to five weeks the shoots should […]
The first two days of January have shown us just what a lottery the weather has become. New Year’s Day it was howling wind and torrential rain, today is the start of a cold ‘snap’. Both potent reminders of the joys of owning a Hartley Greenhouse, as you can start sowing from early January, whatever […]
When it comes to gardening, climate change means a revision of expectations and ideas. These days, an unheated greenhouse provides useful protection for tender crops for longer than ever before. When October frosts were the norm, you wouldn’t even consider leaving chillies to ripen in the greenhouse but now it is more commonplace. Keep checking […]
Clear autumn leaves from gutters as they start to fall. Prevent downpipes from clogging by putting a pan scourer in the hole at the top, then clearing the debris as it backs up, from time to time. Collect rainwater in a waterbutt, when it is full, water at the base of fences under the eaves […]
I hope you have invested in at least one Hartley Botanic Water Butt to collect rain from the deluge that has poured down on our glasshouses over the past weeks. Use the tepid rainwater in the greenhouse on acidic loving plants like Citrus and if you have spare, water under the eaves over winter in […]
Early in the month, especially if 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; think land cress, oriental salads, like pak choi, mizuna and mibuna greens plus lettuce, lamb’s lettuce, chicory and radish and imagine it is spring […]
Sow spring onions in modules in late August for planting outdoors in September, for harvesting next spring, ideally, they should be protected with cloches or fleece after transplanting outdoors. Germinate oriental vegetables like Pak Choi and mustard and salad rocket in modules for transplanting outdoors and overwintering under cloches or fleece. Begin removing tomato leaves […]
At last temperatures have risen and there’s been some sunshine. Keep twining cucumber stems round their supports and cut back the side shoots two leaves beyond the flowers and fruits, as they grow. Increased air movement, keeping the foliage dry, plants well-watered at the base and mulching all combine to reduce chances of powdery mildew […]
I hope that your greenhouse tomatoes are growing well, despite the lack of light. Itit is time to remove the side shoots of ‘cordon’ varieties, as they appear, using your finger and thumb, to create a single productive stem and channel moisture and energy into fruit rather than leaf. Keep the compost constantly moist, particularly […]
It’s a busy time in the greenhouse. Sow courgettes, climbing and dwarf beans, chard, beetroot, salad onions and tender herbs including basil and coriander. ‘Harden off’ and plant outdoor pumpkins, melons and tomatoes and courgettes in their permanent positions once the danger of frost has passed. Plant courgettes into organic rich soil, trough slits in […]
