Successive plantings of onions can keep the kitchen supplied for most of the year.
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Do not give onions too much fertiliser, especially those rich in nitrogen, as this produces soft bulbs that do not keep well. Sow seed in an open, sunny, well drained spot.
A position that gets some wind is ideal, as this helps control downy mildew that can attack plants in spring.
For the longest possible season, sow some early maturing varieties as well as long keepers.
Variegated plants that produce some all-green growth need to have this green growth removed by pruning as soon as it is noticed.
The reason is that the green growth is more vigorous than the variegated growth and will eventually take over the plant. The perfume from flowers usually comes from the nectary glands consisting of a group of cells through the outer walls of which a sweet solution called nectar passes. This serves to attract insects.
When the plant is in flower and the pollen grains are ready, the visiting insects become dusted with pollen grains which they carry to other flowers, dusting their stigmas with the pollen grains, thus pollination takes place. Many plants give off their perfume during the evenings or throughout the night to attract the night flying insects.
During the otherwise drab period between late autumn and early spring coloured foliage, early blossom and bright berries can give the garden a welcome boost.
Before planting any tree it is important to have some idea of the approximate height and width it will reach upon maturity.
Many plants give off their perfume during the evenings or throughout the night to attract the night flying insects.
The main thing to look for in selecting a tree is one with a good root system.
Most potted flowering trees have their roots considerably reduced and in these cases they need only to have their branches reduced in proportion to the root system.
Another factor to consider is whether it has strong leading growths. Foliage trees usually only need to have the leading growths tipped.
Euphorbia wulfenii is a winter and spring flowering shrub particularly suited for dry positions where only the hardiest of plants will grow.
The bracts surrounding the flowers are yellow tinged with green and are produced in great masses. Propagation from cuttings is easy.
Allow the base of the cuttings to dry out for a day or so before inserting them into the soil or potting mix.
Wear rubber gloves when handling any member of the Euphorbia family.
