Wallflowers

Sow wallflower seeds in the next few weeks ready for a display next spring. Wallflowers germinate readily if sown thinly into shallow drills in a wellprepared seed bed. Make sure the soil is moist just below the surface. You can expect the seedlings to show in a few weeks. If necessary irrigate the ground afterwards, taking care not to disturb the seedlings which you want to grow into stocky, wellbranched plants.

In October the young wallflowers will be ready to plant out where they are to flower. The “Persian Carpet” variety which I’ve grown several times is a mixture of warm shades and has full perfume. Recently a stunning photo of Bodnant Garden’s enormous laburnum tunnel appeared in some newspapers. Years ago most gardens boasted a laburnum but they’re not so popular these days. It may well be that we have become more aware that laburnum seeds are poisonous, although the best variety – Laburnum x watereri Vossii is almost sterile, so seeds are not produced.

Tomato Care.

Greenhouse tomato plants should be growing fast by now. If raised as single-stem cordons they will need supporting canes or twine. Tie the delicate young plants to their supports using soft jute string. When you pinch out any side shoots, take care not to bruise the stems. Feed with a general fertiliser such as Miracle Gro All Purpose until the first trusses begin to flower, then switch to a high potash feed such as Tomorite. Bush varieties are better for growing outside but don’t put out protected plants unless the weather is warm. Tomatoes can be killed by the lightest frost. 

Planting Out

All tender plants are at risk from frost until the end of April/ May and need to have protection in a greenhouse or conservatory so if you buy plants over the next few weeks, make sure they are fully hardy before risking them outside.

Long-term, hardy shrubs or trees should be fine for planting outdoors now, even if they are carrying blossom. If you took late autumn or winter cuttings of pelargoniums, fuchsias or other tender plants they will need re-potting now.

If you grow courgettes, marrows or squash, now is the time to sow seeds and these will also need early protection in the greenhouse. Use 9cm plastic or degradable fibre pots. Fill each with potting compost and insert one seed up to 2cm below the surface.

Move your plants to a coldframe during this month and harden them off in May before planting out. Although it gets a little more difficult each year that passes the dry, sunny spell in the middle of March encouraged me and other allotment holders to make a start on rotovating or digging the ground. For me there’s nothing as satisfying as the sight of freshly turned-over soil, ready to be planted with whatever I want to grow throughout the summer.

My Dad was the same and was devoted to his allotment and he was fortunate that his patch was just across the road from our house.

March 2016

Recently I was attracted by a bay tree in a large container outside the entrance of a hotel. From a distance it seemed in very good condition but on closer examination there were signs that it was becoming pot bound.

There was a pool of rainwater standing on the surface, a sure sign of inadequate drainage. Bay needs good drainage and I think that this tree should be re-potted into a larger container making sure that there is plenty of drainage in the form of crocks plus a free-draining compost mix, (50:50 potting compost and grit.)

Over the years I’ve planted a variety of trees and shrubs in containers. At one time if I came across a seedling, I couldn’t resist growing it on – from horse chestnut to rowan, from conifers to hazel and I have learned to make sure that I have kept re-potting into larger containers and that the vital drainage is a priority. I must admit that I’ve had to chop up a plastic pot to release a shrub that had become completely pot-bound and at one time I remember having to smash up a ceramic pot. That mistake cost me dearly- some of the most attractive ceramics are quite expensive. Now I make sure to only use plastic.

I have a 10 year old Acer palmatum which I would like to keep in a pot for as long as I can and it’s already been re-potted several times. Obviously some of my trees and shrubs have reached the stage where keeping them in pots is no longer viable. These are planted here and there around the village and have thrived – notably in upper Walston Road around the Pound Lane area. Footnote: You may remember my mentioning the squirrel and the coconut. Well I did get another coconut and it didn’t take long for the squirrel or one of his mates to spirit both halves away- this time within 24 hours! There was no sign of it on the ground so how he manages to cart it away is something of a mystery!

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