Dragon tree
Dracaena marginata
A slim architectural plant with narrow red-edged leaves on bare stems, tolerant of low light and neglect and unusually sensitive to fluoride in tap water — which shows as brown leaf tips and is the complaint most often blamed on dry air instead.
- Position
- Moderate light
- Water
- low demand
- Drainage
- Free-draining
- Grows to
- 100–200 cm × 45–90 cm
- Frost
- Frost tender
- Difficulty
- Straightforward
August
Nothing to do
No sowing, planting, harvesting or pruning window falls in August.
Dragon tree’s year
Resolved for United Kingdom (general). Every window is stored against a climate event rather than a date, so a late frost pocket runs later than the band shows. What else August calls for.
| Activity | J | F | M | A | M | J | J | A | S | O | N | D |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Prune | April. | May. | June. | |||||||||
| Take cuttings | May. | June. |
Timing that travels
The band above resolves this plant's windows into months for one region. These are the windows themselves, stored against a climate event rather than a date — which is the form that survives being carried to a colder garden, a frost pocket, or next year.
Conditions it needs
- Light
- Partial shade, Dappled shade
- Frost
- Frost tender
- Grows best at
- 18–24 °C
- Soil
- Peat-free compost
- Soil pH
- 6–7
- Drainage
- Free-draining
- Water needs
- low
- Drought
- good tolerance
- Waterlogging
- poor tolerance
- Heat
- moderate tolerance
- Wind and exposure
- poor tolerance
Where these figures come from
- LightSourced guidancemoderate confidence
- Royal Horticultural Society: Dracaena — position
Checked 2026-08-13
- FrostSourced guidancehigh confidence
- Royal Horticultural Society: Dracaena — hardiness
Checked 2026-08-13
- Grows best atSourced guidancemoderate confidence
- Royal Horticultural Society: Dracaena — temperature
Checked 2026-08-13
- SoilSourced guidancemoderate confidence
- Royal Horticultural Society: Dracaena — soil
Checked 2026-08-13
- Soil pHSourced guidancemoderate confidence
- Plant Finder — Missouri Botanical Garden: Dracaena marginata — culture
Checked 2026-08-13
- DrainageSourced guidancemoderate confidence
- Royal Horticultural Society: Dracaena — soil
Checked 2026-08-13
- Water needsHorticultural consensusmoderate confidence
No external citation — see the evidence type above.
Checked 2026-08-13
- DroughtHorticultural consensusmoderate confidence
No external citation — see the evidence type above.
Checked 2026-08-13
- WaterloggingHorticultural consensusmoderate confidence
No external citation — see the evidence type above.
Checked 2026-08-13
- HeatHorticultural consensusmoderate confidence
No external citation — see the evidence type above.
Checked 2026-08-13
- Wind and exposureHorticultural consensusmoderate confidence
No external citation — see the evidence type above.
Checked 2026-08-13
On your soil
Computed by comparing this plant's recorded requirements against each soil's recorded characteristics. A recorded horticultural fact overrides the comparison where GrowingHQ holds one.
| Soil | Verdict | Why |
|---|---|---|
| Heavy clay | Works, with one condition | Dragon tree will crop on heavy clay, but one thing has to be dealt with first. It needs ground that drains, and this soil holds water. For a crop lifted before winter the risk is not rot but the season: waterlogged ground is cold and unworkable in spring, so sowing is late and germination patchy.Improve the drainage before planting — a raised bed, or bulky organic matter worked in over several seasons. Do not add sand to clay in small quantities; it makes the problem worse. |
| Sandy | Prefers this soil | Sandy suits Dragon tree as it stands: The pH suits it: it wants 6 to 7, and this soil is in that range. The free drainage is exactly what it wants. It stands dry conditions better than most, which this soil will test. |
| Chalky and alkaline | Works, with one condition | Dragon tree will crop on chalky and alkaline, but one thing has to be dealt with first. The soil is substantially too alkaline for it: it wants pH 6 to 7, and this soil sits around 7.8 to 8.5.The pH is the obstacle. Small shifts are achievable and slow; large ones are not. On chalky and alkaline the dependable answer is a container of the right compost rather than an attempt to change the ground. |
| Loam | Prefers this soil | Loam suits Dragon tree as it stands: The pH suits it: it wants 6 to 7, and this soil is in that range. The free drainage is exactly what it wants. The soil holds moisture, which saves a great deal of watering. |
| Silty | Prefers this soil | Silty suits Dragon tree as it stands: The pH suits it: it wants 6 to 7, and this soil is in that range. The free drainage is exactly what it wants. The soil holds moisture, which saves a great deal of watering. |
| Peaty and acid | Works, with one condition | Dragon tree will crop on peaty and acid, but one thing has to be dealt with first. It needs ground that drains, and this soil holds water. For a crop lifted before winter the risk is not rot but the season: waterlogged ground is cold and unworkable in spring, so sowing is late and germination patchy.Improve the drainage before planting — a raised bed, or bulky organic matter worked in over several seasons. Do not add sand to clay in small quantities; it makes the problem worse. |
| Shallow over rock | Prefers this soil | Shallow over rock suits Dragon tree as it stands: The free drainage is exactly what it wants. It stands dry conditions better than most, which this soil will test. |
| Made ground and urban soil | Works, with one condition | Dragon tree will crop on made ground and urban soil, but one thing has to be dealt with first. It needs ground that drains, and this soil holds water. For a crop lifted before winter the risk is not rot but the season: waterlogged ground is cold and unworkable in spring, so sowing is late and germination patchy.Improve the drainage before planting — a raised bed, or bulky organic matter worked in over several seasons. Do not add sand to clay in small quantities; it makes the problem worse. |
Not sure which you have? Four hand tests will settle it.
Space and spacing
- Mature height
- 100–200 cm
- Mature spread
- 45–90 cm
- Rooting depth
- 30 cm
Where these figures come from
- Mature heightHorticultural consensusmoderate confidence
No external citation — see the evidence type above.
Checked 2026-08-13
- Mature spreadHorticultural consensusmoderate confidence
No external citation — see the evidence type above.
Checked 2026-08-13
- Rooting depthHorticultural consensusmoderate confidence
No external citation — see the evidence type above.
Checked 2026-08-13
In a container
- Minimum volume
- 7 litres or more
- Minimum depth
- 25 cm
Where the container figures come from
- Minimum volumeHorticultural consensusmoderate confidence
No external citation — see the evidence type above.
Checked 2026-08-13
- Minimum depthHorticultural consensusmoderate confidence
No external citation — see the evidence type above.
Checked 2026-08-13
Where and how you can grow it
Each way of growing is assessed separately, and “not assessed” is a real answer rather than a gap we have filled in with a guess.
| Method | Suitability | What it needs |
|---|---|---|
| Indoor pot | Well suitedsourceSourced guidancemoderate confidence
Checked 2026-08-13 | |
| Container | Well suitedsourceSourced guidancemoderate confidence
Checked 2026-08-13 | Indoors, or outdoors in summer only |
| Windowsill | WorkablesourceSourced guidancemoderate confidence
Checked 2026-08-13 | |
| Hydroponics | Not assessedsourceSourced guidancemoderate confidence
Checked 2026-08-13 | |
| Open ground | Not suitablesourceSourced guidancemoderate confidence
Checked 2026-08-13 | Tender: will not survive a British winter outdoors. |
Growing it
- WateringWater with rainwater or with tap water that has stood overnight. Dracaena accumulates fluoride in the leaf tips, and no amount of misting will fix brown tips caused that way.
- PruningCut a leggy plant back to the height you want. New shoots break from just below the cut, and the removed top can be rooted as a cutting.
- FeedingTwice or three times across the growing season is plenty, at half strength. Dracaenas are slow and undemanding and are much more often harmed by accumulated salts than by a shortage of feed — brown, dry frond tips are the classic sign, and they are also caused by fluoride in tap water, which is why the record recommends rainwater or water left standing. If tips are browning, flush the pot through and feed less. Nothing at all from October.
- TransplantingSeldom, and in spring: every three or four years is plenty for a plant this slow, and a dracaena will live for years visibly happy in a pot that looks too small. Use a free-draining compost and go up one size. Because it is slow, an oversized pot is a real risk: the unused compost stays wet all winter and the roots rot from the outside in. Top-dress a large specimen instead of trying to repot it.
Where this guidance comes from
- WateringSourced guidancemoderate confidence
- Royal Horticultural Society: Dracaena — leaf tips
Checked 2026-08-13
- PruningSourced guidancehigh confidence
- Royal Horticultural Society: Dracaena — pruning
Checked 2026-08-13
- FeedingSourced guidancemoderate confidence
- Plant Finder — Missouri Botanical Garden: Dracaena marginata
Checked 2026-08-13
- TransplantingSourced guidancemoderate confidence
- Plant Finder — Missouri Botanical Garden: Dracaena marginata
Checked 2026-08-13
What goes wrong
Start from what you can see
Safety and edibility
Listed as harmful to cats or dogs
Dragon tree is listed as harmful if eaten. Contains saponins. In cats it characteristically produces vomiting — sometimes with blood — along with drooling, dilated pupils and loss of appetite. Cats are affected more consistently than dogs, and the dilated pupils are the sign owners notice.source
Sourced guidancehigh confidence
- ASPCA Animal Poison Control Center — toxic and non-toxic plant list — American Society for the Prevention of Cruelty to Animals: Dracaena marginata — toxic plants list
Checked 2026-08-13
Affected parts: leaf, stem.
- Pets and livestockpetsContains saponins. Eaten by cats it causes vomiting — sometimes with blood — drooling and dilated pupils; dogs show similar but usually milder signs.
source
Sourced guidancehigh confidence
- Royal Horticultural Society: Dracaena — toxicity
Checked 2026-08-13
Keep out of reach of cats in particular. Contact a vet if a pet has chewed the leaves.
Sources for this page
GrowingHQ editorial synthesis · Plant Finder · Royal Horticultural Society
Each figure on this page carries its own citation, under the “where these figures come from” note in its section. Record last reviewed 2026-08-14.