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Crocus sieberi subsp. sublimis ‘Tricolor’ (Sieber’s Crocus)

Crocus 'Tricolor', Sieber's Crocus 'Tricolor', Snow Crocus 'Tricolor', Three-coloured Sieber's Crocus, Crocus sieberi subsp. sublimis f. tricolor

AGM Award
Crocus Sieberi Subsp. Sublimis 'Tricolor', Crocus 'Tricolor', Sieber's Crocus 'Tricolor', Snow Crocus 'Tricolor', Three-coloured Sieber's Crocus, Crocus sieberi subsp. sublimis f. tricolor, Spring Bulbs, Spring Flowers, early spring bulb, late winter blooming bulb
Crocus Sieberi Subsp. Sublimis 'Tricolor', Crocus 'Tricolor', Sieber's Crocus 'Tricolor', Snow Crocus 'Tricolor', Three-coloured Sieber's Crocus, Crocus sieberi subsp. sublimis f. tricolor, Spring Bulbs, Spring Flowers, early spring bulb, late winter blooming bulb

One of the most striking and earliest crocuses to flower, Crocus sieberi subsp. sublimis ‘Tricolor’ (Botanical Crocus) features large, fragrant flowers with rich purple petals and a golden throat beautifully edged with pure white. Borne on sturdy stems, the blooms open with narrow, dark green leaves. A great performer, ‘Tricolor’ is a cormous perennial that will quickly increase over time, providing attractive splashes of color in the garden.

    • Winner of the prestigious Award of Garden Merit from the Royal Horticultural Society.
    • Blooming occurs from late winter to early spring. The calyx-shaped flowers open only when the sun shines or when there is a lot of light; they close up in rainy weather and at night. Did you know that crocus bulbs remaining in the ground will always bloom a bit earlier than the ones planted the previous year?
    • Growing up to 3-4 inches tall (7-10 cm), this beauty naturalizes easily and will come back year after year!
    • Easily grown in average, medium moisture, well-drained soils in full sun or light shade.
    • Stunning in beds, lawns, under trees, rock gardens, in front of shrubs, and along walkways. Spectacular in large sweeping drifts. For optimal effect, 100 to 150 corms should be planted. If used in lawns, however, the grass may not be mowed until six weeks after the crocuses have bloomed. If mowed earlier than this, the newly forming cormlets (developing on top of the mother corm) will not become large enough to flower next year.
    • To be planted in the fall.

    Very few early-flowering bulbous, tuberous, and cormous plants are so massively planted as the Crocus. Together with tulips, hyacinths, and narcissi, these plants are the most commonly found ‘bulb’ plants in gardens and parks. More than 100 species are known, but only thirty have been cultivated. Some crocuses flower in the fall, but these are fairly rare. Crocuses are lovely in lawns as well as in the perennial border where they join the other very early perennials in ringing in the flowering season.

    Learn How To Plant And Care for Your Spring Flower Bulbs


     To achieve optimum flowering results, it is important to plant the bulbs at the right time.

    Requirements

    Hardiness 3 - 8
    Heat Zones 1 - 8
    Climate Zones 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24
    Plant Type Bulbs, Perennials
    Plant Family Iridaceae
    Genus Crocus
    Common names Crocus
    Exposure Full Sun, Partial Sun
    Season of Interest Spring (Early)
    Winter
    Height 3" - 4"
    (8cm - 10cm)
    Spread 1" - 2"
    (3cm - 5cm)
    Spacing 2" (5cm)
    Depth 3" (8cm)
    Maintenance Low
    Water Needs Average
    Soil Type Chalk, Clay, Loam, Sand
    Soil pH Acid, Alkaline, Neutral
    Soil Drainage Well-Drained
    Characteristics Fragrant, Plant of Merit, Showy
    Tolerance Deer
    Attracts Bees
    Garden Uses Banks And Slopes, Beds And Borders, Patio And Containers
    Garden Styles Gravel and Rock Garden, Prairie and Meadow, Informal and Cottage, City and Courtyard
    How Many Plants
    Do I Need?
    Explore Great Plant Combination Ideas
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    Alternative Plants to Consider

    Crocus vernus ‘Grand Maitre’ (Dutch Crocus)
    Crocus tommasinianus ‘Barr’s Purple’ (Early Crocus)
    Crocus tommasinianus ‘Lilac Beauty’ (Early Crocus)
    Crocus vernus ‘King of the Striped’ (Dutch Crocus)
    Crocus ancyrensis ‘Golden Bunch’ (Snow Crocus)
    Crocus chrysanthus ‘Herald’ (Snow Crocus)

    Recommended Companion Plants

    Scilla bifolia (Alpine Squill)
    Helleborus Winter Jewels ‘Painted Doubles’ (Hellebores)
    Crocus tommasinianus ‘Ruby Giant’ (Early Crocus)
    Galanthus nivalis (Snowdrop)
    Crocus vernus ‘Pickwick’ (Dutch Crocus)
    Scilla mischtschenkoana (White Squill)

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    Pretty Flowers for your Winter Garden
    Underplanting Roses with Low-Growing Spring Bulbs
    Bulbs that return to the garden year after year!
    Crocus chrysanthus (Snow Crocus)
    Crocus sieberi (Sieber’s Crocus)
    Crocus vernus (Dutch Crocus)
    Crocus tommasinianus (Early Crocus)
    Why Spring is Really Three Seasons
    Learn How To Plant And Care for Your Spring Flower Bulbs
    Plants with Purple Flowers to Add Charm to Your Garden
    12 Top Performing Spring Bulbs that Come Back Year After Year!
    Lasagne Planting Method
    While every effort has been made to describe these plants accurately, please keep in mind that height, bloom time, and color may differ in various climates. The description of these plants has been written based on numerous outside resources.
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    Requirements

    Hardiness 3 - 8
    Heat Zones 1 - 8
    Climate Zones 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24
    Plant Type Bulbs, Perennials
    Plant Family Iridaceae
    Genus Crocus
    Common names Crocus
    Exposure Full Sun, Partial Sun
    Season of Interest Spring (Early)
    Winter
    Height 3" - 4"
    (8cm - 10cm)
    Spread 1" - 2"
    (3cm - 5cm)
    Spacing 2" (5cm)
    Depth 3" (8cm)
    Maintenance Low
    Water Needs Average
    Soil Type Chalk, Clay, Loam, Sand
    Soil pH Acid, Alkaline, Neutral
    Soil Drainage Well-Drained
    Characteristics Fragrant, Plant of Merit, Showy
    Tolerance Deer
    Attracts Bees
    Garden Uses Banks And Slopes, Beds And Borders, Patio And Containers
    Garden Styles Gravel and Rock Garden, Prairie and Meadow, Informal and Cottage, City and Courtyard
    How Many Plants
    Do I Need?
    Explore Great Plant Combination Ideas
    Crocus
    Guides with
    Crocus
    Not sure which Crocus to pick?
    Compare Now

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      Create a membership account to save your garden designs and to view them on any device.

      Becoming a contributing member of Gardenia is easy and can be done in just a few minutes. If you provide us with your name, email address and the payment of a modest $25 annual membership fee, you will become a full member, enabling you to design and save up to 25 of your garden design ideas.

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