Plant half-hardy hybrid gladiolus corms directly outside in mid to late spring, or start them under cover earlier. Hardy naturalising types, including Gladiolus byzantinus, can be planted in autumn or spring. Always plant corms during the season in which they arrive.
Out of season
Acidanthera murielae, also known as Gladiolus murielae, brings an air of late-summer elegance just when the garden begins to mellow. Each pristine bloom opens into a perfect white star, and within it a second, richly flushed purple star glows at the centre, illuminated by golden stamens. This exquisite layering gives Acidanthera a painterly quality, as though each petal has been carefully brushed into place. The flowers are lightly nodding, poised at the tips of tall, slender stems that rise to just under a metre, emerging from refined, grey-green, sword-like foliage. It’s a combination that feels both architectural and romantic, explaining why Acidanthera murielae has long been treasured for adding poise and movement to borders.
Despite its exotic poise, Gladiolus murielae is wonderfully accommodating. It thrives in a sunny, sheltered border where its fragrance can drift on warm evening air, yet it is equally content in a generous container on the terrace. Planted in groups, the stems weave gracefully through neighbouring perennials and ornamental grasses, lending height without heaviness. The scent is one of its quiet triumphs—softly sweet and unmistakably luxurious, particularly as dusk settles. For gardeners who value beauty with a touch of the unexpected, few bulbs offer such a rewarding display. Tuck Acidanthera murielae into beds or pots and you’ll find it returns each year with dependable charm and just a hint of drama.
Quantity
Plant profile
Plant calendar
Grow gladioli in full sun, in a sheltered border or large patio container. They need free-draining conditions, so improve heavy soil with organic matter and grit or plant into a raised bed. For containers, use peat-free multipurpose compost.
Position each corm with its pointed side facing upwards, around 10–15cm deep. Space them approximately 10cm apart when planting in groups. A generous cluster creates a fuller display and allows the flower spikes to offer one another some support.
Water thoroughly after planting, then allow the soil to become nearly dry between waterings while the corms remain dormant. Once shoots appear, water regularly throughout active growth, particularly during warm, dry weather and when growing gladioli in containers.
Most gladioli remain upright without help, although staking is useful in exposed or windy positions. Remove faded flower spikes just above the foliage, then leave the leaves to die back naturally. They can be cut down to ground level in autumn.
Lift half-hardy hybrid gladiolus corms in autumn and store them somewhere cool, dry and frost free. These varieties often give their strongest display in their first year. Hardy naturalising gladioli can remain outdoors where the soil drains freely and does not become waterlogged.
- Botanical name
-
Acidanthera murielae
syn. Gladiolus murielae - Flower colour
- White
- Bulb size
- 10/+
- Established height
- 70cm-1m
- Established spread
- 20-30cm
- Growing skill
- Easy to grow
- Habit
- Upright
- Hardiness
- Tender
- Leaf colour
- Green
- Mouse resistant
- No
- Plant spacing
- 30 bulbs per m2
- Pollinator friendly
- No
- Position
- Sheltered
- Rabbit resistant
- No
- RHS Award (AGM)
- Yes
- Scented
- Yes
- Soil acidity
- Any
- Soil moisture
- Free draining
- Soil type
-
Loam
Sandy
Stony
Multipurpose compost
Loam-based compost - Suitable for
-
Borders
Coastal gardens
Gravel gardens
Cottage gardens
Cut flower Gardens
Large containers - Sunlight
- Full sun
- Toxicity
- No report
- Years to establish
- 1st year
Good for cutting
Pollinator-friendly
Fragrant
Thrives in full sun
RHS Recommended
Perennial
Naturalising
Needs winter protection
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Acidanthera murielae reviews
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