Plants
Gaura
Oenothera lindheimeri · Onagraceae
Gaura is movement in the bed: on wiry, metre-high stems, small white or pink butterfly-like blooms open ceaselessly and dance in the slightest breeze. It flowers without pause from June until the first frost and is astonishingly drought-proof — a perennial made for hot city summers and gravel gardens. We like to use it wherever plantings feel too static.
- Light
- Full sun — the more, the richer the veil of flowers.
- Watering
- Low; the deep taproot makes established plants decidedly drought-proof.
- Care level
- Easy
- Botanical
- Oenothera lindheimeri
The range runs from the tall, classic ‚Whirling Butterflies‘ with pure white blooms via pink varieties like ‚Siskiyou Pink‘ to compact series like ‚Gaudi‘ or ‚Belleza‘, which at 40 to 50 centimetres also work in balcony boxes. Some varieties carry red-flushed foliage that adds extra colour to the veil of flowers.
The site decides between life and death: gaura needs full sun and above all a free-draining, rather lean soil. As a prairie perennial it roots deep with a taproot, so it shrugs off summer drought — wet, heavy soil in winter, though, is its certain end. In clay, a generous addition of sand and grit helps.
Its winter hardiness is the only real weak point: gaura is only moderately frost-hardy and often short-lived in harsh spots. Two rules clearly extend its life: first, cut back in spring, not autumn — the old stems are its winter protection. Second, keep it lean, because overfed, lush plants are the first to freeze.
The most common mistake is care that is too well-meant: plenty of water, rich soil, an autumn cut — exactly the programme that kills gaura. Almost forget it, on the other hand, and it rewards you with months of flowers. Deadheading is unnecessary as the plant cleans itself; only a cut back by a third in high summer keeps leggy plants compact.
In combination, gaura is the perfect veil between stronger partners: lavender and catmint pick up the Mediterranean feel, echinacea and grasses the prairie character. Bees and hoverflies happily visit the open blooms. Reassuring for families: the plant is considered non-toxic to people and animals.
Is Gaura toxic to children and pets?
- Children
- Non-toxic
- Cats
- Non-toxic
- Dogs
- Non-toxic
Gaura is considered non-toxic to cats, dogs and children, making it safe for family gardens and balconies. As with all ornamentals, it still should not be eaten.
Overview: toxic & non-toxic plants for cats, dogs and children
Care
- 01Plant in full sun and warmth, ideally in front of a sheltering south-facing wall.
- 02Ensure free-draining, lean soil; lighten heavy soils with sand and grit.
- 03Water sparingly — only container plants and fresh plantings need regular water.
- 04Feed hardly at all; too many nutrients make the plant soft and frost-tender.
- 05Cut back only in spring; the old stems protect the plant in winter.
- 06In harsh spots, cover with brushwood or leaves; overwinter containers frost-free and dry.
Frequently asked
- Is gaura hardy?
- Only moderately — it tolerates around minus ten to minus fifteen degrees, but winter wet is the decisive factor: in free-draining, dry soil it survives mild winters well, in wet clay it almost certainly freezes. A spring cut instead of an autumn cut and a brushwood cover clearly improve the odds.
- How long does gaura flower?
- Non-stop from June until the first frost — few perennials manage that. The individual blooms are short-lived, but the plant constantly pushes new buds on every stem. Deadheading is unnecessary; spent blooms drop off by themselves.
- Is gaura toxic to pets?
- No, gaura is considered non-toxic to cats and dogs. It can safely stand in gardens and on balconies where animals roam. At most, nibbling larger amounts can cause mild stomach upset.
- Is gaura suitable for containers?
- Yes, especially compact varieties like ‚Gaudi‘ or ‚Belleza‘. What matters is a deep container for the taproot, free-draining substrate and sparing watering. In winter the pot should stand dry and sheltered; a cold, bright room is ideal.