Hartley Magazine

Greenhouse growing

Month by month

As seen in Gardens Illustrated A new guide on the 1st of every month

Written in United Kingdom

March means seed sowing and re-potting!

What a dreadfully wet winter we’re having. I hope that you aren’t suffering too much from the incessant rain from one of the wettest winter’s on record and your garden isn’t too waterlogged, either. Rather than letting the rainwater from the water butts on your greenhouse go to waste, water parts of your garden that […]

Written in United Kingdom

Time to harvest and sow

Aubergines and tomatoes that have finished cropping, as some of mine have, can be composted, creating more space in the greenhouse border and between pots on the bench, admitting more sunlight and improving air circulation around the plants that remain. Early in the month, remove individual leaves around aubergines, peppers and cucumbers and continue feeding […]

Written in United Kingdom

Blossom end rot – problem solved

Blossom End Rot, where the end of tomatoes becomes circular, black and flattened, occurs in peppers and aubergines, squashes and watermelons but is most often seen in tomatoes. It is caused by lack of calcium in the fruits. Plants in soil, growing bags and potting composts rarely lack a supply of calcium but what they […]

Written in United Kingdom

Potting on and hardening off.

Sow: outdoor cucumber, marrow, squashes, pumpkins on edge, individually in 7.5cm pots plus French and Runner beans and Sweetcorn in gentle heat in multipurpose compost in a propagator. Tie in the leading shoots of tomatoes, peppers and aubergines as they grow to support growing stems. Continue to prick out and pot on seedlings, gradually increasing […]

Written in United Kingdom

Sow, buddy, sow.

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. From the middle of the month onwards, sow dill, basil, coriander indoor cucumber, courgette, squash, sweetcorn and tomatoes for later transplanting outdoors. Protect peas, broad beans and sweetcorn […]