56 gardener saves
Robinia: the varieties gardeners actually grow
We track 3 varieties; these are the ones gardeners actually save and plant, ranked by real saves rather than catalog marketing. Each links to full care, bloom, and live price data.
The 3 most-saved Robinia varieties
Of 3 in the catalog — ordered by how many gardeners actually grow them.
#1 most savedPurple Robe Black Locust
Robinia pseudoacacia 'Purple Robe'
#2 most savedBlack Locust
Robinia pseudoacacia
#3 most savedTwisty Baby Black Locust
Robinia pseudoacacia 'Lace Lady'
How to grow Robinia
What the Robinia varieties in our catalog actually agree on — drawn from the care records of the 3 most-grown of them, not from a generic template.
The Robinia year
- PruneJanuary and February100% of varieties
Prune in late winter to remove deadwood, crossing branches, and suckers.
- Check for PestsApril–June100% of varieties
Inspect trunk and branches for signs of locust borer activity.
Do
- Use it for difficult, poor-soil sites where other trees fail.
- Wear gloves when pruning to protect against sharp thorns.
- Plant it for its valuable, rot-resistant wood.
- Provide full sun for the best, most compact growth.
- Prune out any suckers that emerge from below the graft union.
Avoid
- Don't plant it in small gardens or near foundations due to suckering.
- Avoid wounding the trunk, as this can attract borers.
- Don't plant it where its brittle branches could fall on structures.
- Do not plant in a shady location.
What goes wrong with Robinia
| Problem | What you'll see | What to do |
|---|---|---|
| Locust Borer | Holes in the bark, sawdust-like frass, and branch dieback. | Keep trees healthy and vigorous. No effective chemical control for homeowners. Remove heavily infested trees. |
| Aphids | Clusters of insects on new growth. | A strong spray of water is often sufficient. Use insecticidal soap if necessary. |
| Locust Leafminer | Brown, blotchy leaves that appear scorched in late summer. | Damage is mostly cosmetic. Rake and destroy fallen leaves. Systemic insecticides can be used but are often not warranted. |
| Canker | Sunken, dead areas on branches and trunk. | Prune out infected branches well below the canker. Improve air circulation and avoid wounding the tree. |
| Heart Rot | Fungal growth (conks) on the trunk; internal decay. | Prevent by avoiding wounds to the trunk. Prune correctly. There is no cure. |
Making more Robinia
Root Cuttings
- In late winter, carefully dig up a section of root.
- Cut into 3-inch segments.
- Plant vertically in a pot of sandy soil.
- Keep moist until new shoots emerge.
Grafting
- Usually chip-budded or grafted onto R. pseudoacacia rootstock.
- This is a specialized technique best left to professional nurseries.
- Take scion wood in winter and graft onto rootstock in late winter/early spring.
Robinia questions
How many types of Robinia are there?
The Sow catalog tracks 3 distinct Robinia varieties. The most popular — ranked by 56 real gardener saves — are shown first above.
What zones does Robinia grow in?
Across its varieties, Robinia covers USDA Zones 4–9. Individual varieties differ — each plant page lists its exact range, and Sow filters the catalog to your zone automatically.
When does Robinia bloom?
Most Robinia varieties bloom in late spring. Staggering early, mid, and late varieties extends the genus's season in one bed.
Which Robinia should I choose?
Start from the most-saved varieties above — popularity across thousands of gardens is a strong signal of reliability — then filter by your zone and sun. In the Sow app you can preview any of them in a photo of your actual yard before you buy.
Keep exploring
Robinia shows up in
Design with Robinia in your own yard
Snap a photo of your space and see these varieties planted in it — sized correctly, matched to your zone, with care reminders included.
