Best eucalyptus seeds UK: what to check before you buy
Updated: 21 October 2026
You are comparing eucalyptus seeds on amazon.co.uk, and the prices in this set only run from £3.49 to £8.99. The costly mistake is a species that cannot take your winter, or a bag that never names a species. This guide orders the checks: Latin name, hardiness, then seed count. The twelve listings sit on our [eucalyptus seeds comparison](/hub/herb-seeds/eucalyptus-seeds). Peter F. used those amazon.co.uk listings, captured on 19 October 2026, and RHS pages, not a germination trial. A purchase through our links can earn a commission at no extra cost to you.
You are comparing eucalyptus seeds on amazon.co.uk, and the prices in this set only run from £3.49 to £8.99. The costly mistake is a species that cannot take your winter, or a bag that never names a species.
You are comparing eucalyptus seeds on amazon.co.uk, and the prices in this set only run from £3.49 to £8.99. The costly mistake is a species that cannot take your winter, or a bag that never names a species. This guide orders the checks: Latin name, hardiness, then seed count. The twelve listings sit on our eucalyptus seeds comparison. Peter F. used those amazon.co.uk listings, captured on 19 October 2026, and RHS pages, not a germination trial. A purchase through our links can earn a commission at no extra cost to you.
Our top picks
| Badge | Product | Species named | Seed quantity | Listed height | Note | Price | Offer |
|---|---|---|---|---|---|---|---|
| Best overall |  Just Seed Just Seed Silver Plate | Silver Plate, no Latin binomial | 10 seeds | 65 cm | 4.5 | about £4.15 | View offer |
| Best value |  SAFLAX SAFLAX Tasmanian bluegum seeds | Eucalyptus globulus bicostata | 100 seeds | 65 cm | 5.3 | about £4.55 | View offer |
 SaatPilot SaatPilot Eucalyptus parvula | Eucalyptus parvula | 50 seeds | 800 cm | 6.8 | about £4.99 | View offer |
On this page
Start with the name on the packet
A usable packet prints a binomial you can look up. Eucalyptus parvula is a plant. 'Green eucalyptus' is a colour. In this set the outdoor name that matches an RHS class of H5 is SaatPilot's Eucalyptus parvula, 50 seeds at £4.99. SAFLAX prints Eucalyptus globulus bicostata on the £4.55 seed packet and the £5.25 kit, and Eucalyptus camaldulensis on the 200-seed river red gum at £4.55. Ipsa prints Eucalyptus deglupta on 20 seeds at £4.42. Just Seed's Silver Plate is 10 seeds at £4.15 with no Latin name. Unwins Baby Blue is £3.49, with no binomial and no seed count in this extract. Four unnamed green packs cost £7.99 to £8.99.
Match the name to a UK winter
Use the RHS hardiness class, not the word 'hardy' in a title. E. parvula, also called small-leaved gum, is H5, about -15 to -10°C, with a mature plant above 12 metres in full sun and shelter. SaatPilot's height field says 800 cm, still short of the RHS maximum, so a small plot means coppicing. E. globulus is H3, about -5 to 1°C, a mild coastal tree toward 30 metres. SAFLAX calls E. globulus bicostata Tasmanian bluegum. That is not cider gum, and a Forestry Commission key has called blue gum very frost tender. River red gum, E. camaldulensis, is also H3. Rainbow gum, E. deglupta, is tropical. Ipsa's 'outdoors April to August' is a sowing window, not hardiness.
Then count the seeds and ignore the 65 centimetre height
Once the name fits the site, count the envelope. SAFLAX blue gum is 100 seeds at £4.55, or £5.25 with coconut fibre. That 70p is compost, not a hardier species. River red gum is 200 seeds at £4.55, with an H3 limit and only four reviews. The unnamed packs cost £7.99 to £8.99 for title counts of 25, 50 or 100, and more than one page sets the unit count at 1. Several listings print 65 cm, including the blue gums, river red gum, Silver Plate and Ipsa. The RHS puts E. globulus at 30 metres or more and E. parvula above 12 metres. SaatPilot's 800 cm is the only tree-scale figure here.
A short buying checklist
Work down the list once, and stop when an answer is no. Read the Latin name, and if it is missing, do not use the packet for an outdoor tree. Match that name to an RHS class: H5 E. parvula for a typical British winter in this set, H3 blue gum or river red gum only for a mild coast or a protected pot. If you wanted E. gunnii, buy a packet that names cider gum. Treat £7.99 to £8.99 with no binomial as a poor trade. Ignore a listed height of 65 cm.
Common questions
Which packet should I buy for a normal UK garden?
For a garden that gets a real winter, start with SaatPilot Eucalyptus parvula, 50 seeds at £4.99. The RHS rates that species H5. The listing has no star line in this extract, so you are trusting the name, not a pile of reviews. Skip it if you need a houseplant, or if the plot is too exposed even for an H5 evergreen. Blue gum and river red gum are H3 and belong on milder sites.
Is Tasmanian bluegum the same as a hardy cider gum?
No. SAFLAX titles Eucalyptus globulus bicostata as Tasmanian bluegum. The RHS page for E. globulus is H3, a large tree for mild and coastal gardens. Cider gum is E. gunnii, which UK seed catalogues sell and this amazon.co.uk set does not name. A blue-gum packet does not become cider gum because both are eucalyptus.
Why do some packets only say green eucalyptus?
The listing never chose a species. Without a binomial you cannot match H5 or H3, and you cannot tell a foliage gum from a forest tree. In this set those packs also cost £7.99 to £8.99, above the named packets at about £4.55 to £4.99. A shared product image between two of them does not add an identity.
Are 10 seeds at £4.15 worse value than 100 seeds at £4.55?
On count, yes. Just Seed Silver Plate is 10 seeds at £4.15 with no Latin name, and UK reviews mention very few seedlings. SAFLAX blue gum is 100 named seeds at £4.55. The blue gum is still H3, so the better count is only better value if your site can take that species. Postage on a 10-seed pack can cost more than the seeds.
Does a Defra number mean the seed is certified?
No. Just Seed states Defra registration 7291, and an organic registration appears on that seller's copy. A registration is a seller claim about the business. It is not a germination test of the envelope in your hand, and it does not transfer to the other brands in this comparison. Ornamental eucalyptus seed is outside the main GOV.UK vegetable-seed marketing scheme.
Can I trust an expected height of 65 centimetres?
No. That figure is repeated on unrelated listings, including gums the RHS describes at 12 to 30 metres. SaatPilot's 800 cm for E. parvula is closer to a tree and still below the RHS 'above 12 metres'. Use the RHS height for the named species, and assume you will coppice if you want stems rather than a forest tree.
What if I wanted Eucalyptus gunnii and it is not in the table?
Buy it from a seed house that prints Eucalyptus gunnii or cider gum. It is the species many UK growers mean by a hardy gum, and it is absent here. Do not substitute rainbow gum, an unnamed green pack, or Tasmanian bluegum. If your real constraint is a pot in a flat, Baby Blue is a different job and a different page.
Related pages
Sources
Public UK sources named below. amazon.co.uk prices, stars and review counts on these twelve listings were read on 19 October 2026. Page updated 21 October 2026.
- RHS eucalyptus growing guide (retrieved 19 October 2026)
- RHS Eucalyptus gunnii (retrieved 19 October 2026)
- RHS Eucalyptus globulus (retrieved 19 October 2026)
- RHS Eucalyptus parvula (retrieved 19 October 2026)
- RHS Eucalyptus camaldulensis (retrieved 19 October 2026)
- Forest Research cider gum (retrieved 19 October 2026)
- GOV.UK invasive non-native plants (retrieved 19 October 2026)
- ASPCA eucalyptus (retrieved 19 October 2026)