The American beech (Fagus grandifolia) does have well documented allelopathic properties to its leaves and leaf mould. Also very competitive for...
Crocosmia × crocosmiiflora, or montbretia, is the only crocosmia covered by Schedule 9 of the Wildlife and Countryside Act 1981: Wildlife and...
Buddleja lindleyana, a fully hardy shrub from China. Scentless flowers with long corolla tubes evolved for moth pollinators.
They tend not to flower after a hard winter. This is because the growing points that produce the new wood with flowers are formed the previous...
That's a tough one to identify, but I would say that is possibly Buddleja macrostachya, the summer flowering form. Most likely a collection by Roy...
Did the flower open? What was it like and does it look like B. forrestii?
Deadhead it. The Buzz plants are fertile, and research shows they're as fertile as any other Buddleja davidii when in range of other Buddleja...
I would put money on that actually being Buddleja forrestii, which flowers now. Buddleja colvilei flowers in May-June.Here is a photo of what I...
Yes, you can grow Buddleja davidii in a container. The following points are worth noting: The new ultra-small cultivars often have problems and...
There are many more in addition: 'White Harlequin' - white flowers, likely to revert. 'Butterfly Gold' - a recent introduction. Blue-violet...
It's caused by the melon-cotton aphid, Aphis gossypii, according to the RHS and is an emergent problem starting only circa 2023. There's more...
Try SB Plant Invigorator - it's plant-oil based and includes a foliar feed. Should not harm or deter bees or aphid predators.Or horticultural...
Two related answers: 1) If the soil is too rich in nitrogen, then the plants will have a lot of soft, sappy top growth. When the sun is hot, the...
Siberian bugloss, Brunnera macrophylla. White-flowered form, possibly a named cultivar (there are several white ones).
It's still a bit early - some of mine have only just shown flower buds forming. I would check carefully, as the small buds may still be hidden by...
Cuttings should never be fed any fertiliser at the roots as it encourages rotting off. Sometimes a very, very weak foliar feed in a spray may be...
I'm not convinced it's a Buddleja davidii, which would have flowers now. If it is a Buddleja, I would guess one of the newer hybrids, 'Blue Chip'...
I think it can depend on variety. I had ‘Glaskin’s Perpetual' (low oxalic acid) completely eaten away by slugs, and replaced it with 'Stockbridge...
I only have one thing to contribute. Get a mat or a propagator with a thermostat. The cheaper un-thermostated type heat all the time to about 10ºC...
Seems random to me - I've seen two plants of the same cultivar close together where one is totally infested with aphids, like a broad bean plant,...
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