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Eucalyptus seeds for pots

Updated: 21 October 2026

You want silver leaves in a container, a bright room, or a jug on the table, not a tree on the lawn. 'Houseplant' and 'baby' still mean a plant of metres. A pot freezes faster than the ground, and the leaves and the oil are a problem for dogs and cats. In this set the pot candidates are Unwins Baby Blue and Just Seed Silver Plate. Prices are on the [eucalyptus seeds comparison](/hub/herb-seeds/eucalyptus-seeds). Peter F. used listings from 19 October 2026, RHS container notes, the Unwins and RHS Baby Blue pages, and UK pet-toxicity pages. A purchase through our links can earn a commission at no extra cost to you.

You want silver leaves in a container, a bright room, or a jug on the table, not a tree on the lawn. 'Houseplant' and 'baby' still mean a plant of metres.

Our top picks

Just Seed Just Seed Silver Plate

Best overall

Just Seed Just Seed Silver Plate
4.5/10about £4.15
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SAFLAX SAFLAX Tasmanian bluegum seeds

Best value

SAFLAX SAFLAX Tasmanian bluegum seeds
5.3/10about £4.55
View offer
Unwins Unwins Eucalyptus Baby Blue

Rank 3

Unwins Unwins Eucalyptus Baby Blue
2.8/10about £3.49
View offer
On this page
  1. 1.Which packets are actually for pots
  2. 2.Pot size and light
  3. 3.Winter in a container
  4. 4.Pets in the same room

Which packets are actually for pots

Unwins Houseplant Eucalyptus Baby Blue is £3.49. The Amazon title does not say seeds, and the seed count is missing. Do not assume 20 seeds. The rating is 3.0 from two reviews with no text. Unwins' own page sells it as seed, often treated as Eucalyptus pulverulenta, about 3 metres, sown February to April, then kept at about 12°C. The RHS cultivar page describes a plant about 2.5 to 4 metres tall. A specialist nursery warns that some sellers label ordinary cider gum as Baby Blue. Just Seed Silver Plate is the other foliage packet: 10 seeds at £4.15, no Latin name, sold as tender or half-hardy. SAFLAX blue gum at £4.55 and river red gum are H3 forest trees. A 200-seed windowsill tray of river red gum is not a houseplant.

Pot size and light

A specimen wants a large pot, ideally about 60 cm across, with peat-free John Innes No 2 or No 3 and up to about 30 per cent grit. Keep it moist in the growing season and drier in winter. Raise it on feet so it does not sit in a saucer of rain. A seedling starts in a deep cell and moves up. It does not start in that tub. Baby Blue is about 3 metres on the Unwins page and 2.5 to 4 metres on the RHS cultivar page if you let it grow. It does not turn the species into a 30 cm herb.
Just Seed Just Seed Silver Plate

Testsieger

Just Seed Just Seed Silver Plate
4.5/10about £4.15
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Winter in a container

Pots freeze faster than the ground. A hardy gum may need no blanket once it is in the soil. A container on an open railing is still a container. Silver Plate, sold as tender or half-hardy, does not get a free pass because a field said 65 cm. Bring tender foliage under cover before a hard frost. If you cannot move the pot or offer a bright frost-free space, this is the wrong project.

Pets in the same room

The genus is toxic to dogs, cats and horses on the ASPCA list, including a plant from a 'baby' packet. Purina UK describes the plant and the oil as poisonous to dogs, with vomiting and diarrhoea, and says the oil can be worse, with seizures possible. Cats Protection lists eucalyptus oil among essential oils that are toxic to cats and says not to make the cat vomit. If a dog or a cat has chewed leaves or licked oil and is unwell, call a vet. When it is not a collapse, Animal PoisonLine is 01202 509000. If you cannot separate the plant from the pet, choose different foliage.

Common questions

Can I grow eucalyptus from seed in a pot in a flat?
Yes, if the room is bright and you accept a plant that wants to reach about 3 metres unless you cut it. Unwins Baby Blue is the houseplant listing at £3.49, with a thin Amazon page and a fuller method on the brand site: a short chill, light to germinate, and about 12°C minimum afterwards. A north-facing sill in midwinter will draw the seedlings long and thin.
How big will Baby Blue get?
The RHS cultivar page puts E. pulverulenta 'Baby Blue' at about 2.5 to 4 metres tall and 1.5 to 2.5 metres wide. Unwins lists about 3 metres. Those figures assume you let it grow. Regular cutting keeps juvenile foliage and a plant you can still move. Confirm the packet is that plant. Some sellers use the Baby Blue name for cider gum, which becomes a tree.
Is Silver Plate the same plant?
Not on the evidence in this extract. Just Seed does not print a Latin name. The seller calls Silver Plate tender or half-hardy. It is 10 seeds at £4.15, and UK reviews mention very few seedlings. It can be a small foliage trial. It is not a documented E. pulverulenta, and the 65 cm height field is not a mature size you should trust.
Will a pot gum survive winter on a balcony?
Only if you can keep the pot from freezing solid and the top from a hard frost. Containers are colder than the ground. The RHS still wants a large, gritty pot on feet, against a south- or west-facing wall, drier in winter than in summer. Silver Plate is sold as tender or half-hardy. An open balcony in a cold inland winter is a likely loss unless you move it.
Is it safe with a dog or a cat?
No. Purina and Dogs Trust treat the plant as poisonous to dogs. Cats Protection treats eucalyptus oil as toxic to cats. The ASPCA lists the genus for dogs, cats and horses. Keep leaves, stems and oil out of reach. If an animal is unwell after chewing them, call a vet. Animal PoisonLine is 01202 509000 when you need the UK poisons line and it is not an emergency collapse.
Can I cut stems for a vase?
Yes. That is why floristry growers want the round juvenile leaves of Baby Blue. Cut young growth, expect the plant to reshoot, and keep the vase where pets cannot drink the water or eat the stems. Cutting does not shrink the species to a herb. It only delays the metres.
Should I sow a 200-seed river red gum in a windowsill tray?
No, if the only home is a small pot you will not keep pruning. Eucalyptus camaldulensis is an H3 tree, 200 seeds at £4.55, not a foliage houseplant. You will either have a tray of seedlings you cannot place, or one tree that outgrows the flat. Use Baby Blue or Silver Plate for the pot, and use a hardy species only if you actually have a garden.

Related pages

How to sow eucalyptus seeds

Eucalyptus seeds buying guide

Hardy eucalyptus seeds

Eucalyptus seeds

Best eucalyptus seeds: H5 parvula or the H3 blue gum

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.

  1. RHS eucalyptus growing guide (retrieved 19 October 2026)
  2. RHS Eucalyptus gunnii (retrieved 19 October 2026)
  3. RHS Eucalyptus globulus (retrieved 19 October 2026)
  4. RHS Eucalyptus parvula (retrieved 19 October 2026)
  5. RHS Eucalyptus camaldulensis (retrieved 19 October 2026)
  6. Forest Research cider gum (retrieved 19 October 2026)
  7. GOV.UK invasive non-native plants (retrieved 19 October 2026)
  8. ASPCA eucalyptus (retrieved 19 October 2026)