Eucalyptus in Zone 10a & 10b
Eucalyptus pulverulenta
Yes, eucalyptus grows in zones 10a and 10b. Start seeds indoors Nov 28–Dec 5 and plant out Feb 6–Feb 13.
When to plant eucalyptus in zone 10b
Zones 10a and 10b share the same average frost dates, so this page covers both.
Method: Start indoors: Start indoors from seed, then transplant outside. It needs a head start most zones can't give it by direct-sowing alone.
| Start indoors | Nov 28–Dec 5 |
|---|---|
| Direct sow / transplant outside | Feb 6–Feb 13 |
| Estimated bloom | May 17–May 24 (~100 days after transplanting) |
Spacing: 1 per square foot (square-foot-gardening spacing). Mature height: 2-4 ft.
Plant alongside it in zone 10b
These go outside within two weeks of eucalyptus in zone 10b, so one planting day can cover them.
- MarigoldFeb–May
- Ageratum (Flossflower)Feb 6–Feb 13
- AmaryllisFeb 6–Feb 13
- Annual Geranium (Pelargonium)Feb 6–Feb 13
- Calla LilyFeb 6–Feb 13
- Campanula (Bellflower)Feb 6–Feb 13
Eucalyptus supplies the silver-blue, rounded foliage familiar from florist bouquets, grown here from seed as an annual cut-flower filler outside its natural zone 9-11 perennial range.
How eucalyptus fits zone 10's season
Zone 10b's frost-free window runs about 324 days, from January 30 to December 20. Eucalyptus needs about 100 days from transplant to first bloom.
Eucalyptus planting windows in every zone
Zone 10b is highlighted. Useful for comparing against a neighbouring zone, or for a garden somewhere else.
| Zone | Start indoors | Sow or plant out | Bloom |
|---|---|---|---|
| 2a & 2b | Mar 18–Mar 25 | May 27–Jun 3 | Sep 4–Sep 11 |
| 3a & 3b | Mar 28–Apr 4 | Jun 6–Jun 13 | Sep 14–Sep 21 |
| 4a & 4b | Mar 13–Mar 20 | May 22–May 29 | Aug 30–Sep 6 |
| 5a & 5b | Mar 8–Mar 15 | May 17–May 24 | Aug 25–Sep 1 |
| 6a & 6b | Feb 21–Feb 28 | May 2–May 9 | Aug 10–Aug 17 |
| 7a & 7b | Feb 6–Feb 13 | Apr 17–Apr 24 | Jul 26–Aug 2 |
| 8a & 8b | Jan 21–Jan 28 | Apr 1–Apr 8 | Jul 10–Jul 17 |
| 9a & 9b | Dec 14–Dec 21 | Feb 22–Mar 1 | Jun 2–Jun 9 |
| 10a & 10b (your zone) | Nov 28–Dec 5 | Feb 6–Feb 13 | May 17–May 24 |
| 11a & 11b | Oct 30–Nov 6 | Jan 8–Jan 15 | Apr 18–Apr 25 |
Bloom dates are about 100 days after the sow or plant-out date, not after starting seeds indoors.
Zone 2 sows before zone 3 here, which looks wrong and is not. USDA zones rank winter cold, not season length, and zone 2 is mostly interior Alaska, where hard winters come with warm summers. More on what a zone measures.
Good companions
No well-established companions for eucalyptus.
Where to buy eucalyptus seeds
None of the seed suppliers we list carries eucalyptus seeds right now. A local garden center or a specialty seed house is the place to look.
See why we recommend these suppliers →
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See it growing
Search YouTube for "growing eucalyptus" videos → (a live search, not a hand-picked video; results vary and aren't vetted by us)
← Back to the full zone 10b calendar · Plan your beds in the Garden Designer →
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Growing Eucalyptus in USDA zone 10b: when to start seeds indoors, when to direct-sow, and when to expect a bloom.
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