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Polianthes tuberosa The Pearl

Polyanthes tuberosa The Pearl
Tuberose

4,6/5
55 reviews
9 reviews
5 reviews
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I notice that the quality at Promesse de Fleurs is declining, or perhaps the staff's choices are not very informed! I have already mentioned that these bulbs should not have been sent. Too ugly, too dry, lacking substance. After years of complete satisfaction, I am now questioning things following several small disappointments.

Denise, 23/11/2024

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This plant carries a 6 months recovery warranty

More information

Value-for-money
This delicate perennial fills the summer air with its heady fragrance. Its magnificent semi-double pearly-white flowers bloom in summer in long, dense clusters on stems that often require staking. Tender and frost-sensitive, this tuberous plant requires a sunny and warm exposure. Growing it in a pot will help to meet its needs. Its flowers are wonderful in elegant bouquets. 
Flower size
5 cm
Height at maturity
80 cm
Spread at maturity
30 cm
Exposure
Sun
Hardiness
Hardy down to -4°C
Soil moisture
Moist soil
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Best planting time April to May
Recommended planting time March to June
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Flowering time July to October
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Description

Polianthes tuberosa 'The Peal' bears magnificent semi-double to double flowers. They are pink when in bud, opening to reveal a pearlescent white complexion and a particularly delicate and spicy fragrance. Its summer flowering is enchanting. Its requirements are simple and clear: it loves sunshine and heat. It should be grown in a pot to enjoy its beauty in summer, and brought indoors for winter protection.

 

Polianthes tuberosa is native to Mexico. They are tuberous perennials that prefer bright and warm environments, are sensitive to frost, and do not tolerate cold weather well. Few of us will be able to grow them in open ground and will have to dig them up to spend the winter in a dry place at a minimum of 10°C (50°F). Growing them in pots will facilitate their installation and allow them to be placed in the sun or in a conservatory. This way, their fragrance will be appreciated to its full value. It is mainly cultivated for the cosmetic and perfume industry. It is used in the composition of several well-known heady perfumes.

Its base consists of a rosette of lanceolate, long, and deciduous leaves. They resemble ribbons and can measure up to 50cm (20in) long and 1.5cm (1in) wide. A flower stem emerges from the centre. This stem can vary in size between 70cm (28in) and 1m (3ft). From July onwards (depending on the regions), it will bear a spike 15 to 20cm (6 to 8in) tall, composed of about ten flowers. These flowers gradually open from bottom to top and form several rows of waxy petals that curl backwards and form a beautiful star-shaped cup. Their powerful fragrance is present day and night, and lasts for some time if you cut the flowers and display them in a vase. The ivory-white blooms are naturally elegant and refined.

 

Polianthes tuberosa 'The Pearl' is a jewel to be carefully preserved in a conservatory. The luckiest gardeners will be able to grow it in open ground in a small bed or rockery near a patio to enjoy its exceptional beauty and fragrance.

 

Polianthes tuberosa The Pearl in pictures

Polianthes tuberosa The Pearl (Flowering) Flowering

Plant habit

Height at maturity 80 cm
Spread at maturity 30 cm
Growth rate normal

Flowering

Flower colour white
Flowering time July to October
Inflorescence Spike
Flower size 5 cm
Fragrance Very fragrant
Good for cut flowers Cut flower blooms

Foliage

Foliage persistence Deciduous
Foliage colour green

Botanical data

Genus

Polyanthes

Species

tuberosa

Cultivar

The Pearl

Family

Amaryllidaceae

Other common names

Tuberose

Origin

Cultivar or hybrid

Product reference512991

Planting and care

In regions with a warm climate, it can be planted in early spring, when the soil has warmed up (10 to 15°C (50 to 59°F)). Choose a very sunny exposure as they need warmth to flower. The soil must be well-drained. Place them 10cm (4in) deep, spaced 10 to 30cm (4 to 12in) apart. Remove the clumps before the first frost and store the tubers in sand, protected from frost and kept at a temperature above 10°C (50°F). You may find bulblets at the periphery of the main bulb. Gently remove them and put them in pots for the following season. However, they will not flower in the first year.

Pot cultivation is recommended in most of our regions.  To achieve earlier flowering, bulbs can be grown in pots and taken outside in April (if temperatures reach around 15°C (59°F) during the day). Tuberose can be planted in large pots with a diameter of 25 to 30cm (10 to 12in) for 1 bulb, or 3 bulbs per 40 to 50cm (16 to 20in) pot. The pots should be brought indoors in winter until the following April.

Planting period

Best planting time April to May
Recommended planting time March to June
Planting depth 10 cm

Intended location

Suitable for Meadow, Rockery
Type of use Border, Container
Hardiness Hardy down to -4°C (USDA zone 9b) Show map
Ease of cultivation Amateur
Exposure Sun
Soil pH Neutral
Soil moisture Moist soil, Well-drained, moist.

Care

Pruning No pruning necessary
Soil moisture Moist soil
Disease resistance Very good
Overwinter Needs to be stored
4,6/5

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