Sagittaria platyphylla - Delta Arrowhead, Pond Marginal Plant
Sagittaria platyphylla - Delta Arrowhead, Pond Marginal Plant
£6.80
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Planting Time
Flowering Time
Sagittaria platyphylla, known as delta arrowhead, is a marginal plant from North and Central America. Its leaves are usually lance-shaped, without arrow-shaped lobes at the base. It carries white flowers with yellow centres, about 3 cm across, in whorls of three.
Delta arrowhead at a glance
| Botanical name | Sagittaria platyphylla |
|---|---|
| Common name | Delta arrowhead, broadleaf arrowhead |
| Plant type | Upright, spreading perennial with tubers |
| Height and spread | Up to 80 cm–1.2 m above the water (Australian sources) |
| Flowers | White (occasionally pink) with a yellow centre, about 3 cm across, in whorls of three |
| Soil | Wet ground or shallow water |
| Pond depth | Shallow water at the pond edge |
| Hardiness | Not rated by the RHS |
| Native to | Eastern, central and southern USA, Mexico and Panama (not UK native) |
Is delta arrowhead invasive?
It is not on any GB banned or restricted plant list, but it is a serious weed in Australia and New Zealand, where it forms dense stands in shallow waterways. It spreads by seed, rhizomes, tubers and fragments. Keep it to garden ponds, never plant it in or near natural water, and do not compost or dump unwanted plants.
Where to plant it
- Shallow water at the edge of a garden pond
- In a solid basket to stop it spreading
- Ponds well away from streams and ditches
How to plant and care for it
Plant in a basket in shallow water. Remove the seed heads before they ripen to stop it spreading.
Which size should I buy?
Bare-root plants (7 cm, 9 cm, 1 litre and 3 litre) arrive without a pot or compost and are the most economical way to plant a group. Potted plants (9 cm, 1 litre and 3 litre) arrive growing in our peat-free compost and give a faster display. Packs of 3 come in 7 cm, 9 cm, 1 litre and 3 litre bare-root sizes and cost less per plant. The 2x Pot & Compost option is two plants supplied with pots and compost.
Pond depth: 10 - 40cm
Light: Full sun or part shade
Hardiness: Hardy
Height and spread: 80 - 120cm tall, 50 - 100cm wide
Planting and flowering months are shown in the calendar under the photos.
Bare root (7 cm, 9 cm, 1 litre, 3 litre): plants sent without a pot or compost, ready to plant straight away. The most economical way to plant a group.
Potted (9 cm, 1 litre, 3 litre): plants growing in our recycled, peat-free compost made in Lincolnshire. Larger sizes give a faster display.
Pack of 3 (7 cm bare-root, 9 cm bare-root, 1 litre bare-root, 3 litre bare-root): three plants of the chosen size at a lower price per plant.
2x Pot & Compost: two plants supplied with pots and compost.
Sizes shown with a line through them are currently unavailable.
At Lincs Plants, we strive to provide fast and reliable shipping to ensure your plants arrive in perfect condition. We offer 1-3 day shipping through a variety of dispatch methods to suit your needs.
Processing Time:
Orders are processed within 1 - 3 business day after payment confirmation. Orders placed on weekends or public holidays will be processed the next business day.
Shipping Methods:
- Standard Shipping (1-3 days)
- Express Shipping (1-2 days)
Should you have any questions or concerns about your shipment, feel free to contact us.
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