Alphabetical Plant Listing

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


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.

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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 Crocus
Exposure Full Sun, Partial Sun
Season of Interest Spring (Early)
Winter
Height 3" – 4" (7cm – 10cm)
Spread 1" – 2" (2cm – 5cm)
Spacing 2" (5cm)
Depth 3" (7cm)
Water Needs Average
Maintenance Low
Soil Type Chalk, Clay, Loam, Sand
Soil pH Acid, Alkaline, Neutral
Soil Drainage Well-Drained
Characteristics Fragrant, Plant of Merit, Showy
Tolerance Deer
Garden Uses Banks and Slopes, Beds and Borders, Patio and Containers
Garden Styles City and Courtyard, Gravel and Rock Garden, Informal and Cottage, Prairie and Meadow

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Martin Ogden / Teddingtongardener.com

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.


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 Crocus
Exposure Full Sun, Partial Sun
Season of Interest Spring (Early)
Winter
Height 3" – 4" (7cm – 10cm)
Spread 1" – 2" (2cm – 5cm)
Spacing 2" (5cm)
Depth 3" (7cm)
Water Needs Average
Maintenance Low
Soil Type Chalk, Clay, Loam, Sand
Soil pH Acid, Alkaline, Neutral
Soil Drainage Well-Drained
Characteristics Fragrant, Plant of Merit, Showy
Tolerance Deer
Garden Uses Banks and Slopes, Beds and Borders, Patio and Containers
Garden Styles City and Courtyard, Gravel and Rock Garden, Informal and Cottage, Prairie and Meadow

Great Plant Combination Ideas with Crocus

Guides with Crocus

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