Roehampton Garden Society


January jobs on your allotment

Maintaining soil and structures and planning ahead

  • As crops are harvested clear debris and cover cleared soil with weed suppressant.
  • Plan a crop system for vegetables- leaving a minimum of two years before replanting crops in the same place.
  • Complete winter digging of bare beds and cover the ground to warm beds for early crops.
  • Open greenhouse vents on mild days
  • Clean greenhouses, staging, pots and seed-trays for the coming growing season.

Sowing and growing

  • Apply winter washes to fruit trees to control overwintering pests.
  • Start ‘chitting’ tubers of early potatoes in trays in a cool, light, frost-free location.
  • Sow broad beans in pots under cover.
  • Sow winter salads in a greenhouse or windowsill.
  • Sow summer brassicas and spinach on a windowsill to plant out in late February.
  • Aubergines can be sown under cover on a sunny windowsill from late January.
  • Bring potted runners of strawberries under glass for forcing.
  • Sow later sweet peas now and pot on autumn-sown sweet peas, pinching out the tip after 4 pairs of leaves have developed or when plants have reached 3.5 cms. Place on a sunny windowsill, in a cold frame or greenhouse.
  • Ensure brassicas are protected against pigeons by netting.
  • Begin forcing rhubarb for an early crop by placing a bucket or forcing jar over the crop.

Harvesting

  • Harvest parsnip, swede, sprouting broccoli, Brussels sprouts, leek and turnip.

Pruning

  • Prune overgrown blackcurrant bushes- remove a third of the old, weak or unproductive stems to ground level to encourage new basal shoots.
  • Prune freestanding apples and pears, maintaining an open centre. Do not remove more than 20% of the crown in one winter
  • Prune gooseberries, redcurrants and whitecurrants by removing dead wood and low lying shoots. Prune last year’s growth of the main stems by about a half. Prune all side-shoots back to one to three buds from their bases.
  • Prune grapevines before mid January.

Gardening for wildlife

  • Regularly replenish bird feeders.
  • Clear out bird boxes by removing old nests and rinse out boxes.


July jobs on your allotment

  • Hoe off weeds on bare soil, water well then cover with mulches to prevent moisture loss, for instance, pile grass clippings onto layers of newspaper.
  • Add material to compost heaps, mix greens (nitrogen rich) with browns (carbon rich) at 50/50 ratio.
  • Water heaps if dry and turn to speed up decomposition.
  • In early July continue to sow beetroot, chard, perennial spinach, kohl rabi and turnips for autumn harvesting.
  • Sow dwarf French beans.
  • Sow kale for early spring harvesting and rocket for autumn harvesting.
  • Sow beetroots Choggia or Burpees Golden for autumn eating.
  • Plant specially prepared potato tubers for Christmas crop.
  • Finish planting out leeks.
  • Remove the main shoot on cordon tomatoes where they hit the greenhouse roof, or a leaf or two above the seventh flower truss.
  • Water soft fruit and fruit trees during dry spells to encourage good fruit development.
  • Water courgettes consistently so they continue to flower and crop.
  • Mulch brassicas after rain to lock in moisture and nutrients and lessen the effect of club root.
  • Prune cherries and plums after fruiting.  Remove weak, damaged and crossing branches.
  • Pinch out climbing beans once they reach the top of supports.
  • Once harvesting of summer fruited raspberries is finished, cut old fruited canes to ground level and tie in new, healthy canes to supports.
  • Summer-prune red and white currants and gooseberries. For gooseberries trim back all side shoots to 3 or 4 buds from their point of growth and cut out shoots that cross into the middle f the bush.