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Hyacinth 'Dark Dimension'Hyacinthus orientalis

Hardy Perennial

What is Hardy Perennial?

FROM £12.99

Simply breathtaking!

Deep indigo, nearly black blooms

Fabulous contrast against lighter-toned varieties

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Description How to Grow More Info Delivery

For spring drama, you cannot beat the incredible indigo blooms of Hyacinth ‘Dark Dimension’. The darkest hyacinth available, this rare beauty looks almost black in certain lights – an accomplishment achieved after many years of diligent breeding. ‘Dark Dimension’ is of course also imbued with an intoxicating fragrance. Show off this dark beauty with hyacinths in purples, pinks or white or combine it with lighter-toned daffodils, tulips and pansies for a knock out display. Height: 20cm (8"). Spread: 15cm (6").

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How to grow bulbs, corms and tubers

Height Up to 20cm (8in)
Spread Up to 15cm (6in)

Hardy Perennial

sun or semi shade

Flowering Months
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1 Bulb (KH0204)
3 Bulbs (KH0205)
6 Bulbs (KH0206)

Grow hyacinths in moist, fertile well drained soil in sun or semi shade. Plant hyacinth bulbs approximately 10cm (4") deep and at a distance of 8cm (3") apart.


To grow hyacinths for indoor displays, plant them in containers of bulb fibre or potting compost with the tip of the bulb just visible above the soil surface. Position them in a cool garage or other well ventilated, dark position at a maximum temperature of 7°C (44°F) for around 6 weeks. Water bulbs only when necessary in order to keep the compost moist. When the growing shoots reach a height of 3cm (1"), move the containers to a cool bright position indoors.

Water container-grown hyacinths with care. Avoid over wetting the compost or allowing it to dry out. After flowering, indoor displays can be planted out doors where they will bloom the following spring. Hyacinths that are planted outdoors are virtually maintenance free. Caution: irritant to skin and eyes, harmful if eaten.

Seeds and garden supplies will normally be delivered within the time period stated against each product as detailed above. Plants, bulbs, corms, tubers, shrubs, trees, potatoes, etc. are delivered at the appropriate time for planting or potting on. Delivery times will be stated on the product page above, or in your order acknowledgement page and email.

Orders for packets of seed incur a delivery charge of £2.99.

Orders which include any other products will incur a delivery charge of £6.99.

Where an order includes both packets of seeds and other products, a maximum delivery charge of £7.99 will apply - regardless of the number of items ordered.

Large items may incur a higher delivery charge - this will be displayed in your shopping basket.

Please see our Delivery page for further details, and more information on different charges that may apply to certain destinations.

For more information on how we send your plants please visit our Helpful Guide on plant sizes.

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