The illustrated growing guide
Butterfly Bush
Buddleja davidii
Family Scrophulariaceae
Est. zones 5-9
Butterfly COCKTAIL BAR, not butterfly housing — nectar without host plants is an empty promise, so plant milkweed nearby. Seedy old cultivars are invasive in some states; modern sterile 'Miss'/'Pugster' types fixed that.
Full Sun
Low water
Very Fast growth
Attracts butterflies
Attracts bees⚠ Invasive in parts of the USCheck your state before planting.
I
Overview
Will butterfly bush suit your garden, and what goes wrong.
Will it fruit where you are?
Enter your ZIP — we look up your USDA hardiness zone (2023 map) and check it against what butterfly bush actually needs.
Hardy inZones 5-9Butterfly Bush at a glance
Common butterfly bush problems
- Spider Mites in drought
- Root Rot in wet winters
II
Growing
Light, water, soil, propagation and the season’s jobs.
How to grow butterfly bush: light, water & soil
How to plant & propagate butterfly bush
III
The year
What butterfly bush asks for, month by month.
The butterfly bush year, month by month
BloomPruneWhat each band means
- Bloom — flowers open — pollinators working, frost on blossoms is the danger.
- Prune — shape it now — cuts heal cleanly and structure is visible.
The butterfly bush year as text
- Jan quiet month
- Feb quiet month
- Mar pruning
- Apr pruning
- May quiet month
- Jun bloom
- Jul quiet month
- Aug quiet month
- Sep quiet month
- Oct quiet month
- Nov quiet month
- Dec quiet month
These are the species' typical months — expect them a few weeks earlier in warm zones and later in cold ones. Watch the plant, not just the calendar.
IV
Ecology & uses
What it does for the garden, and what it is grown for.
Butterfly Bush in the garden system
- Shrub layer shrub
- Nectary/insectary
What butterfly bush is grown for
✓ Commonly eaten
Edibility, identification, and traditional-use notes here are general reference — not medical or veterinary advice, and not a claim that any plant treats or prevents anything. Medicinal ratings record how strongly a plant features in herbal tradition, nothing more. Never eat or dose a plant you have not positively identified. More on how to use this library.
V
Cultivars
Named varieties of butterfly bush, ruled as a catalogue.
Best butterfly bush varieties & cultivars
'Miss Molly' (sterile, red); 'Pugster' series (dwarf, sterile); 'Black Knight' (classic, seeds — deadhead!)
VI
Sources & plant ID
Where the care distinctions come from, and how the plant is filed.
Research basis
Sources behind this profile
No extension citations are attached to butterfly bushyet. The care figures below come from the library's own catalogue rather than a traced primary source.
Plant ID
VII
Where to buy
Third-party nurseries — not Story Thyme Farms.
Third-party nurseries, not Story Thyme Farms. Prices are theirs.
Story Thyme Farms may earn a small commission from these links, at no cost to you — it never changes what we recommend.
VIII
Questions
Butterfly Bush questions, answered straight.
Is butterfly bush safe for kids and pets?
Butterfly Bush is commonly eaten and isn't considered toxic, but "commonly eaten" isn't a guarantee for any particular person or animal — allergies, quantity, and which part you eat all matter. Never eat a plant you haven't positively identified, and check with a vet before letting pets or livestock graze anything new.
How do you propagate butterfly bush?
Seed (stratify), cuttings, or layering.
Is butterfly bush invasive?
It can be invasive in some regions — give it room or a barrier, and check your state's invasive-species list before planting.
IX
Elsewhere
Where butterfly bush sits in the library.
Rose
Hydrangea
Common Lilac
Forsythia