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Iberis sempervirens

Iberis sempervirens
Evergreen Candytuft, Perennial Candytuft, Thalspi

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Never truly recovered, they vanished in less than a year...

Durand joelle, 03/12/2023

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Evergreen groundcover, ideal for rockeries and borders. The abundant brilliant white flowers complement dark foliage. Easy to grow and highly drought-resistant, this perennial thrives in the poorest and most calcareous soils. Hardy, Iberis also tolerates partial shade.
Flower size
5 cm
Height at maturity
25 cm
Spread at maturity
40 cm
Exposure
Sun, Partial shade
Hardiness
Hardy down to -29°C
Soil moisture
Dry soil, Moist soil
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Best planting time March to April, September
Recommended planting time March to May, September to November
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Flowering time March to October
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Description

Iberis sempervirens is a vigorous small plant with a spreading habit, ideal for adorning sunny rockeries, borders, and containers, from spring to autumn. This remarkably floriferous groundcover is adorned with multiple brilliant white flowers, covering narrow, dark green, evergreen foliage. Very drought-resistant once established, it can thrive in any type of well-drained soil, even poor and chalky soil. It prefers sun but also tolerates partial shade.

 

Iberis sempervirens, also known as Candytuft, is a groundcover plant of the Brassicaceae family, native to the Mediterranean region. This plant therefore tolerates heat and drought once well established. Its foliage is composed of numerous small, oblong, and narrow leaves, measuring only 2 to 3 cm (1in) in length.  They are dark green and evergreen.  They are carried by woody stems that form a dense tuft 25 cm (10in) tall and spread at least 40 cm (16in) wide. The cushions, present all year round, are covered with tight clusters of pure white flowers with four petals, enhanced by yellow stamens, between March and May. Depending on the soil moisture, flowering can sporadically continue until autumn. It is very easy to propagate by cuttings in spring or late summer. Iberis is also highly attractive to bees.


Very hardy, you can plant Candytuft in all regions, as long as the soil is well-drained. Heavy soil quickly causes the plant to struggle. On the other hand, rocky soil does not bother it. You can use it to accentuate pathways. In rockeries, you can associate it with Teucrium, Aubrieta, Erodium, thymes... or even with Salvia chamaedryoides in not too harsh climates. It can also be successfully grown in pots, with regular watering, in a light and perfectly drained substrate.

Iberis sempervirens in pictures

Iberis sempervirens (Flowering) Flowering
Iberis sempervirens (Foliage) Foliage
Iberis sempervirens (Plant habit) Plant habit

Flowering

Flower colour white
Flowering time March to October
Inflorescence Corymb
Flower size 5 cm
Bee-friendly Attracts pollinators

Foliage

Foliage persistence Evergreen
Foliage colour green

Plant habit

Height at maturity 25 cm
Spread at maturity 40 cm
Growth rate normal

Botanical data

Genus

Iberis

Species

sempervirens

Family

Brassicaceae

Other common names

Evergreen Candytuft, Perennial Candytuft, Thalspi

Origin

Mediterranean

Product reference896412

Planting and care

Iberis sempervirens shoud be planted in spring or autumn in the ground or in a container in a sunny position. It will also tolerate some shade.

It will tolerate and even prefer poor, even chalky, rocky, or sandy soils. If you place it in richer or slightly heavier soil, make sure to add some gravel or coarse sand during planting, as it will not appreciate waterlogged soil, especially in winter.

This plant requires little maintenance. You can simply remove faded flowers by lightly trimming it if you want to maintain a more compact shape.

6
19,50 €
17
14,50 € Each

Planting period

Best planting time March to April, September
Recommended planting time March to May, September to November

Intended location

Suitable for Rockery
Type of use Edge of border, Container
Hardiness Hardy down to -29°C (USDA zone 5) Show map
Ease of cultivation Beginner
Planting density 7 per m2
Exposure Sun, Partial shade
Soil pH Neutral, Calcareous
Soil type Chalky (poor, alkaline and well-drained), Stony (poor and well-drained)
Soil moisture Dry soil, Moist soil, Well-drained and poor

Care

Pruning No pruning necessary
Disease resistance Very good
Overwinter Can be left in the ground
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