Share your pictures? Hide split images
I have read and agree the terms and conditions of service.
New arrival

Kalmia latifolia Ideal - Mountain Laurel

Kalmia latifolia Ideal
Mountain Laurel, Calico Bush, Spoonwood

Be the first to leave a review

Shipping country:

Schedule delivery date,

and select date in basket

This plant carries a 24 months recovery warranty

More information

A heather soil bush, not very common yet remarkable in flowering. Its dark green evergreen foliage perfectly enhances the numerous bell-shaped flowers in a pinkish-white colour highlighted with a purple ring. This compact bush, which can be grown in a pot, fits perfectly in a bed of heather soil plants with which it shares the same requirements. It thrives in acidic, humus-bearing, moist yet well-drained soils, under the protective shade of other plants.
Flower size
4 cm
Height at maturity
1.20 m
Spread at maturity
80 cm
Exposure
Partial shade
Hardiness
Hardy down to -23°C
Soil moisture
Moist soil
plantfit-full

Would this plant suit my garden?

Set up your Plantfit profile →

Best planting time March, October
Recommended planting time March to May, September to October
J
F
M
A
M
J
J
A
S
O
N
D
Flowering time May to June
J
F
M
A
M
J
J
A
S
O
N
D

Description

The Kalmia latifolia 'Ideal' is an evergreen heather soil bush that offers one of the most beautiful spring flowerings. In May-June, its floral buds, produced well in advance, open up to form lovely bell-shaped flowers, larger than many other varieties. With a pale pink color, the floral corollas are enhanced by reddish-purple speckles arranged in a peripheral circle. The flowering, exuding a true romantic charm, is magnified by the shiny dark green foliage, which persists all year round. A superb bush still too little planted, it appreciates cool and semi-shady situations and is not afraid of the cold.

Kalmia is a member of the Ericaceae family, which includes about a hundred genera, many of which are ornamental (Rhododendron, Heathers, Leucothoe...) and some produce edible fruits (Blueberry, Strawberry Tree...). The genus Kalmia, commonly known as Mountain Laurel, boasts about twenty species native to North America. Kalmia latifolia thus grows wild in the oak and pine forests of the eastern Canadian mountains (Quebec and New Brunswick) and the eastern United States, descending as far as Florida. In these regions, it can form a small tree up to 12 m high, but in our parks and gardens, it does not exceed 2 to 3 m and often less.
'Ideal' is a horticultural hybrid obtained in 2001 by the German breeder Karl-Heinz Hübbers by crossing the varieties 'Mitternacht' and 'Ginkona'. The result of this crossbreeding was registered in 2013 to be released on the market. The fairly slow-growing bush forms, in ten years of planting, an irregular clump of approximately 1.10-1.20 m in height by 0.80 m in width. It has an upright habit, with somewhat stiff, upright branches, green streaked with reddish. The leaves measure up to 10 cm long by 4 cm wide, are dark green with a smooth and glossy surface, while the edges may slightly undulate. They are carried by short 2 cm long petioles. This somewhat dark evergreen vegetation forms a perfect setting for the flowering. The dark pink floral buds are already very decorative before the flowers bloom in May and June. Gathered in corymbs about a dozen centimeters long, the numerous flowers (several tens) open gradually one after the other, half-open bell-shaped flowers coexisting with fully open flowers, forming cups up to 3.5 cm in diameter. Their light pink color is absolutely delightful and, a touch of coquetry, reddish-purple speckles are arranged to form a mottled border, further enhancing their beauty. The corolla consists of five fused petals (referred to as gamopetalous flowers), 10 discreet stamens, and a protruding pistil. In full bloom towards the end of May, the Kalmia can compete with many other flowering shrubs.

The Kalmia 'Ideal' is a very attractive bush, quite demanding in its growing conditions, not tolerating limestone, full sun, and even less drought. However, when its needs are met, it is a plant of great beauty that offers a rare spectacle in spring. Plant it alongside the Andromeda polifolia 'Blue Ice', a charming shrub that, planted at its base, will create a nice and soft contrast of foliage thanks to its small silver-gray leaves. Its small pink bell-shaped flowers will perfectly complement the bells of your Mountain Laurel. A few plants of Japanese Primrose 'Millers Crimson' in the foreground will also be welcome, while a Japanese Maple 'Dissectum Garnet' with its very finely cut dark red foliage will have a beautiful effect behind 'Ideal'.

Beware of children and pets, all parts of the plant are toxic (leaves, buds, and flowers).

Plant habit

Height at maturity 1.20 m
Spread at maturity 80 cm
Habit Irregular, bushy
Growth rate slow

Flowering

Flower colour white
Flowering time May to June
Inflorescence Corymb
Flower size 4 cm
Fruit colour black

Foliage

Foliage persistence Evergreen
Foliage colour dark green

Safety measures

Potential risks Plant may be toxic if swallowed

Botanical data

Genus

Kalmia

Species

latifolia

Cultivar

Ideal

Family

Ericaceae

Other common names

Mountain Laurel, Calico Bush, Spoonwood

Origin

Cultivar or hybrid

Product reference23152

Planting and care

Originating from the mountains of the Eastern North America, the Kalmia latifolia is extremely hardy and can withstand very low temperatures, down to -20°C. It requires to be planted in a semi-shaded exposure, in a humus-bearing and fertile, acidic, fresh (even moist) but well-drained soil. For planting, avoid frosty or extremely hot periods, but rather favour those of spring or autumn rains, which will facilitate its establishment. Plan for a fairly wide and deep hole (40 cm by 40 cm) for your Kalmia to settle in permanently. Regular watering (with non-limestone water if possible) in the first weeks following planting is necessary to keep the soil moist and fresh. Mulching at the base can be beneficial to protect the fine and superficial roots. Every spring, loosen the soil around the base and top dress with a mix of compost, heather soil, and pine bark. If the soil is limestone, it will be necessary to avoid planting this acid-loving bush, which may deteriorate in the long term. However, you can attempt its cultivation by replacing your garden soil (within 60 to 80 cm all around) with a mix of heather soil, leaf compost, and peat. In this case, provide dissolved iron chelate in the irrigation water every three months, from spring to autumn.

The Mountain Laurel can tolerate a sunny exposure, but fears scorching situations and drought. It must be placed in such a way that it is shaded during the hottest hours of the day, and mulching the base is necessary to preserve soil freshness. During the summer period and especially in case of drought, regular watering (preferably with rainwater) will be essential. Summer watering is particularly important as floral buds form for the following spring. The Mountain Laurel, loving coolness and high humidity, will thrive in an oceanic or rainy climate. It can also be grown in a large container on the terrace or balcony. The risks of soil drying out are higher in pot cultivation, thus a large container along with mulching, to retain freshness, and increased monitoring of watering will be necessary. Prefer plastic pots with "double skin" (with an insulating air layer between the two layers) or thick terracotta to promote thermal inertia and prevent harmful soil heating. Apart from removing faded flowers, pruning of Kalmia latifolia is hardly necessary. In fact, it may hinder next year's flowering, as floral buds form at the ends of the branches. However, it is possible to remove dead wood and lightly refresh to maintain a balanced habit of the Kalmia.

Planting period

Best planting time March, October
Recommended planting time March to May, September to October

Intended location

Suitable for Woodland edge
Type of use Border, Container, Hedge
Hardiness Hardy down to -23°C (USDA zone 6a) Show map
Ease of cultivation Amateur
Planting density 1 per m2
Exposure Partial shade
Soil pH Acidic
Soil type Silty-loamy (rich and light)
Soil moisture Moist soil, Rich in humus and light

Care

Pruning No pruning necessary
Soil moisture Moist soil
Disease resistance Good
Overwinter Can be left in the ground

This item has not been reviewed yet - be the first to leave a review about it.

Leave a review →

Haven't found what you were looking for?

We only deliver seed and bulb products to your country. If you add other products to your basket, they cannot be shipped.