Selwyn Times: February 01, 2023
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<strong>Selwyn</strong> <strong>Times</strong> Wednesday <strong>February</strong> 1 <strong>2023</strong><br />
30<br />
GARDENING<br />
Latest Canterbury news at starnews.co.nz<br />
Time to add compost and manure<br />
Vegetables<br />
In all but the coolest areas,<br />
radishes sown now will not<br />
thrive, tending to bolt to seed,<br />
even when the soil is kept moist,<br />
and those that do mature being<br />
unacceptably sharp in flavour.<br />
To add a little bite to salads, use<br />
nasturtium leaves and flowers,<br />
or grow some mustard streaks<br />
(Brassica juncea), which grow<br />
very rapidly and if to be eaten<br />
fresh are best young. Older plants<br />
can be used in stir-fry mixes.<br />
Onion plants can have their tops<br />
bent over to assist bulb swelling.<br />
Crops sown in autumn will<br />
be almost ready for pulling. If<br />
harvested in hot, settled weather,<br />
they should be well-ripened and<br />
suitable for long storage. Thickstemmed<br />
bulbs will probably not<br />
keep well, so keep them aside for<br />
immediate use.<br />
Liquid manure assists most<br />
crops. Make your own by tying<br />
a sack filled with sheep, horse,<br />
cow or poultry manure and<br />
suspending it in water for a few<br />
days. One kilogram of fresh<br />
manure to five litres of water<br />
is a suitable mixture. Excellent<br />
liquid manure can also be<br />
made with seaweed and is good<br />
for silverbeet, asparagus and<br />
cabbages.<br />
Nitrate of soda and sulphate of<br />
ammonia (two tbsp to 20 litres<br />
of water) promotes leafy growth<br />
in salad crops and any winter<br />
SPUDS: Potatoes can be dug now as the foliage yellows.<br />
greens not growing as fast as they<br />
should.<br />
Early potatoes can be lifted as<br />
the foliage yellows. Once potatoes<br />
are well-matured, a combination<br />
of rain and warm soil could<br />
prompt new growth, spoiling<br />
the crops quality and storage<br />
properties. Brussels sprouts may<br />
need to be staked to prevent those<br />
in exposed positions twisting in<br />
the wind.<br />
Spring cabbages are best<br />
when harvested early. Make one<br />
sowing at the end of January and<br />
another two weeks later. Grow<br />
in a seed tray or make a seed<br />
bed in a sheltered spot in semishade.<br />
Enrich the soil with some<br />
fine compost. Sow seed thinly<br />
in 50mm-deep drills and cover<br />
firmly. Transplant the seedlings<br />
when big enough to handle.<br />
Cabbage aphis and white<br />
butterfly caterpillars go on the<br />
attack at this time of year. Protect<br />
seedlings with derris dust or spray<br />
with soapy water.<br />
Flowers<br />
The madonna, or true<br />
christmas lily (Lilium candidum),<br />
will have finished flowering by<br />
now. Cut the old flower stems<br />
off at ground level and destroy<br />
to prevent the spread of botrytis.<br />
Unlike almost all other lilies, L.<br />
candidum has no resting period.<br />
Fresh growth develops from the<br />
bulbs as soon as the flowering<br />
period is over so, if bulbs are to<br />
be divided or shifted, the work<br />
is best done now. Also, unlike<br />
other lilies, the bulb should not<br />
be covered but the top third left<br />
above the ground. They like hot,<br />
dry spots and will tolerate some<br />
lime.<br />
Multiply all lily bulbs<br />
by detaching scales and<br />
inserting them point upwards<br />
in boxes of sandy soil with the<br />
base of each scale just below the<br />
surface. Keep the boxes moist and<br />
plant the scales out when they<br />
have rooted. Plants propagated<br />
this way should flower in the<br />
second season.<br />
Violas and pansies may be<br />
looking straggly and producing<br />
smaller flowers. Cut them back to<br />
new growth just above the ground<br />
and they will spring away.<br />
Tulips and hyacinths can be<br />
lifted and cleaned when the tops<br />
have died down. Place the bulbs<br />
in shallow trays in a dry, cool,<br />
airy place. Never expose them<br />
to full sunshine. Anemones<br />
and ranunculuses can be lifted<br />
and stored for a month or two,<br />
until planting space is available.<br />
For winter blooms, plant some<br />
anemone bulbs now in a warm<br />
place. Like all bulbs, narcissi,<br />
crocuses and snowdrops suffer<br />
if kept out of the soil for any<br />
length of time. Lift only when<br />
overcrowding makes it necessary<br />
and replant without delay.<br />
THRIVE: Strawberries like<br />
plenty of compost, leaf<br />
mould and well-rotted<br />
manure.<br />
Fruit<br />
Strawberry plants can be<br />
increased readily from the rooted<br />
runners the plants are now<br />
producing. Use only the strongest<br />
on any vine and after it has<br />
established roots, set it out in rich<br />
soil in early March. This summer<br />
propagation allows the plant<br />
to develop before cold weather<br />
sets in and bear a fruit crop next<br />
summer. If planting is delayed<br />
until winter or spring, no fruit<br />
should be allowed to develop in<br />
the first season.<br />
Being of woodland origin,<br />
strawberries like plenty of<br />
compost, leaf mould and wellrotted<br />
manure. Superphosphate<br />
applied when planting will supply<br />
the phosphates important to<br />
full growth. Do not use lime, as<br />
strawberries prefer a slightly acid<br />
soil.<br />
Are you ready to grow?<br />
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