What soil does Weyer's butterfly bush grow in?

It tolerates these soils: average garden soil, clay.

Is Weyer's butterfly bush hardy?

Hardy down to -23 °C (USDA zone 6, RHS H7). It gets through winter everywhere at lower altitudes, but may not survive unprotected in a mountain garden.

How far from the house should Weyer's butterfly bush be planted?

Plant it at least 1.5 m from buildings. Keep it at least 0.5 m from paving.

When does Weyer's butterfly bush flower?

Flowering: June–October, yellow, orange.

How much water does Weyer's butterfly bush need?

Water need: medium. Drought tolerance: high.

How much does Weyer's butterfly bush cost?

It sells for roughly €13 to €39 in local shops, depending on size.

Weyer's butterfly bush

Buddleja × weyeriana

Weyer's butterfly bush (Buddleja × weyeriana) is a shrub. Hardy down to -23 °C. Drought tolerance: high. Sold in local shops from about €13.

Illustration of Weyer's butterfly bush — An illustration of the typical shape of the mature plant, not a photo.

What it's good for, and what it isn't

A vigorous, arching butterfly bush that swaps the usual purple for yellow, apricot or yellow and lilac scented flowers packed into ball-shaped clusters, from early summer until frost, always busy with butterflies and bees. Give it full sun and sharp drainage, because wet soil in winter harms it more than cold does. Cut it back hard every spring: it also flowers on the new shoots, so it recovers well after winter dieback. It sets far less seed than the common butterfly bush, but it is still worth cutting off the spent flower heads.

Watch out for

One of the least hardy butterfly bushes: in hard Central European winters the top growth often dies back to the ground, but the rootstock usually resprouts, especially in a sheltered spot with a winter mulch over the crown. Wet, poorly drained soil can kill it in winter, and in shade it grows lanky and hardly flowers. The stamens of the hybrid are reduced and it sets little or no seed, so it is generally not regarded as a spreading plant; with a common butterfly bush (Buddleja davidii) flowering nearby it can still produce viable seed, so cut off the spent flower heads. One parent, Buddleja davidii, is on official invasive lists in several nearby countries, while the hybrid itself is on none of them. Aphids and spider mites turn up occasionally.

Key facts

Light: Full sun
Water need: Medium
Care: Medium
Size after 10 years: 2.5 m × 2 m
Hardiness: down to -23 °C
Foliage: Deciduous
Flowering: J F M A M J J A S O N D June–October, yellow, orange

Group	Shrub
Light	Full sun
Size after 10 years	2.5 m × 2 m
Ultimate size	1.5–4.5 m × 1.2–3 m
Hardiness	down to -23 °C (USDA 6, RHS H7)
Soil	Average garden soil, Clay
Foliage	Deciduous
Flowering	June–October, yellow, orange
Water need	Medium
Drought tolerance	High
Maintenance	Medium
Root aggressiveness	Low
Suckering	no
Spreading	Low
Distance from buildings	at least 1.5 m
Distance from paving	at least 0.5 m
Litter	not typical
Planting distance	150 cm
For dogs	no data
For cats	no data
For children	no data
Typical price	from about €13

Toxicity data is for information only. If your pet or child has eaten a plant, contact a vet or a doctor.

Sizes and prices available

The same plant is sold as a small pot and as a specimen several metres tall, and the price follows. Prices are rounded and for guidance only.

Size	Typical price
40-50 cm	approx. €13
40-60 cm	approx. €18
size not stated	approx. €13 – €39

Frequently asked questions

Data updated: October 8, 2026 · How our data is made

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