Lichen as a dating tool
This may mean that the following year the plant looks a little better, and it will flower on any healthy new growth.
For the past three years, my 14 year-old pyracantha, growing against the house wall, has become increasingly infested with woolly aphids. Woolly aphids that commonly infest trees in the apple family, as well as pyracantha and cotoneaster, are the very devil to defeat.I have sprayed with a hose, and then with a systemic insecticide but to no avail. These super-aphids have worked out a cunning way to survive – covering themselves en masse in a protective greyish woolly coating (that is often mistaken for a fungus of some kind) to keep predators at bay – that includes us and our spray bottles of gunk, of course – and breeding like billy-ho every spring.Then feed the roots with a general fertiliser (they will be extensive on such a mature shrub), water it in and apply a thick mulch.Maybe then you can do some scrubbing and hosing and spray the new growth when it appears (with Ultimate Bug Killer) and so on.
Perennial stock in winter I have several young plants of perennial stock that have been splendid all summer, and do not know what to do with them. I have kept some seed in case they don’t come through the winter. Margaret Morelle, Emsworth, Hants Unlike their annual cousins, young plants of the much sought-after perennial stock (Matthiola incana) form distinctly woody trunks as they mature.Their heavenly flowers are produced on short side shoots in a huge flush in May and June, and further flush-lets follow throughout summer.