Yellow Mammoth Species Crocus

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corms
Crocus x luteus (C. flavus x C. angustifolius)

The gold standard of crocuses.

The classic big yellow, the most popular crocus variety for over 300 years. Also sold under the names Golden Yellow, Giant Yellow, and Grote Geele. Vigorous, 2–5 large flowers per corm. Sterile; spreads by offsets. Blooms slightly before the Jumbos, C. vernus, but is often grouped with them.

4–6" tall. Very Early to Early Spring blooms, Z3–8. 8–9cm bulbs.

Items from our perennial plants warehouse will ship around September 30 through October. Bulbs can be planted successfully up until your ground freezes.

Note to Alaska and far north customers: We cannot guarantee an early shipment, so please plan accordingly and order early.

We cannot accommodate specific ship date requests or guarantee your order will arrive by a certain day.

ships in fall

6489 Yellow Mammoth

A: 25 ea
$18.50
sold out
B: 50 ea
$36.00
sold out
C: 100 ea
$68.00
sold out

Additional Information

Spring Crocus

A classic for early spring color that also provides early food for bees. One of the most popular genera, they are welcome precursors of spring—colorful, long-lived, and easy to grow. Their waxy coat allows them to bloom even through a late snow. Flowers open wide in bright sun and close up at night and on grey days. Once established, crocus can spread by “cormlets” and seed in well-drained areas. Foliage of low-growing varieties fades before the grass needs mowing.

In his award-winning book The Holistic Orchard, Michael Phillips recommended planting crocus in the orchard to help attract and retain native orchard mason bees. Crocus provide a pollen source before the fruit trees bloom.

Flowers

All flowers are open-pollinated except where noted.

Days in parentheses after a variety indicate days to first bloom.