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Internet # 302431181

Model # 21577

Tulip Mammoth-Sized Bulbs Darwin Hybrid Mixture (15-Pack)

Contains 15 plants ($1.78 /plant)
$26.66 /package
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  • Finest & Largest bulb size money can buy
  • Bigger bulbs produce bigger blooms
  • Huge blooms
  • View More Details
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Product Details

About This Product

Tulips are unique in range of size, shape and bold color found in almost every color spectrum that only tulips provide. Tulips are good for a wide range of plantings, are excellent in the rock garden, in formal beds, as elegant cut flowers, and for containers. Flowers are upward facing, with linear to lance shaped green leaves on the stem. An incredible source of inexpensive color for the garden. Plant several different varieties of tulips throughout the garden to extend the blooming time. What makes this mixture so unique is the bulb size. We use giant sized, Mammoth, 14/+ bulbs - a size normally not commercially available. This mixture is made up of varieties of the Darwin Hybrid class, and they come in brilliantly colored blooms. These tulips are tall, traditionally shaped, and highly prized by gardeners everywhere for their strong stems and huge flowers. Bigger bulbs means bigger blooms. To ensure optimal results, allow adequate space and sunlight, plant at the appropriate depth, and feed with a well balanced fertilizer. Remove the flowers as soon as the leaves yellow. Best planted in late fall. Some gardeners treat tulips as annuals. For an informal look, plant in groups in natural swathes or bouquets. In USDA zones 8-10, refrigerate the bulbs for no less then eight weeks. In the garden, plant them before frost, but not as early as in the northern part of the country. Planting them in a lightly shaded area will keep them cool and prolong blooming.


  • Bulb size 14/16 cm
  • Finest and largest bulb size money can buy
  • Bigger bulbs produce bigger blooms
  • Huge blooms
  • An incredible source of inexpensive color for the garden
  • Shop All Holiday Plants: Poinsettia, Amaryllis, Norfolk Pine, Paperwhites, & Christmas Cactus.Click here to learn more."
  • Return Policy

Product Information

Internet # 302431181

Model # 21577

Additional Resources




Mature Height (in.)

20 in.

Mature Width (in.)

10 in.


Additional Characteristics

None Listed

Annual / Perennial


Average Shipping Height (in.)

4 in

Best Time to Plant


Bloom Season


Blossom Color Family

Assorted Colors

Botanical Name


Common Name Family


Container Type




Growth Habit


Hardiness Zone

3 (-40 to -30 F),4 (-30 to -20 F),5 (-20 to -10 F),6 (-10 to 0 F),7 (0 to 10 F)

Number of plants included (Pack-Size)


Pack Size


Recommended Space Between Plantings (in.)




Sun Tolerance

Part Sun

Water Requirements

Twice a week

Wildlife Attracted

No Wildlife Attracted

Wildlife Deterred

No Wildlife Deterred

Questions & Answers

Q:Not sure I understand the description says 25 bulbs but the pack size says 10 so how many bulbs am I receiving 10 or 25?
by|Sep 29, 2021
1 Answer
Answer This Question

A:  25 tulip bulbs

by|Oct 6, 2021
    Showing 1-1 of 1

    Customer Reviews

    4.6 out of 5

    • 4.6 out of 10 reviews
    • 100% recommend this product
    Filter by:
    Showing 1-10 of 10 reviews
    Quality bulbs
    [This review was collected as part of a promotion.] Tulips are absolutely beautiful. These are really nice looking bulbs. They look healthy and are huge. There are enough to fill a large area or scatter in different garden areas. They can even be planted in pots. They can grow up to 20 inches tall. They were packaged well and included a nice card with information. They need planted well before the first frost in my area so I just finished up getting them in the ground. They won't bloom until Spring but I am really looking forward to seeing the beautiful colors they produce.
      About 20% of the bulbs were rotted…Not Good!
      Response from Van Zyverden ProductDec 14, 2023
      Thank you for your purchase. Please contact our customer service department at customerservice@vzusa.com and they will be happy to assist you.
      • Verified Purchase
      HUGE bulbs!
      [This review was collected as part of a promotion.] I just planted these a week or two ago, so I can't review the actual blooms - however, the bulbs are gigantic and look to be very good quality! The mix I got had quite a few bulbs as well, so I'm hoping I'll get a whole patch of pretty tulips come Spring!
        • Recommended
        Good bulbs!
        [This review was collected as part of a promotion.] This was a great set of bulbs!! I was looking forward to planting this and am looking forward to seeing them grow. No complaints and will be repurchasing!
          • Recommended
          [This review was collected as part of a promotion.] Received 15 of this Plantcetera - Tulip - Darwin Hybrid Mix - Mammoth Bulbs. Size of a little onion. Looking forward for it to grow and bloom. Love the tulip colors.
            • Recommended
            Healthy Bulbs
            [This review was collected as part of a promotion.] I have never got any flowers or bulbs by mail before, wasn't sure what to expect. The bulbs arrived to me in perfect condition! They are huge, healthy and I cannot wait to see these bloom in the spring! I planted mine in pots, you can do pots or ground. You have to get them settled before the first frost though! I know these are going to be absolutely gorgeous.
              • Recommended
              Plantcetera - Tulip - Darwin Hybrid Mix - Mammoth
              [This review was collected as part of a promotion.] Plantcetera - Tulip - Darwin Hybrid Mix - Mammoth Bulbs. They are currently planted in the grown in a raised garden. Super easy to plant. Cant wait to see the beautiful colors. Tulip are one of my favorite flowers.
                • Recommended
                Lovely Flowers
                [This review was collected as part of a promotion.] Great flowers with great combination of colors. I planted my Tulip- Hybrid Mix early Fall and can’t wait for it to bloom and having lots of beautiful flowers in my garden. Tulips are easy to care.
                  • Recommended
                  Rating provided by a verified purchaser...
                  Rating provided by a verified purchaser
                  • Verified Purchase
                  Really large bulbs. Excellent product....
                  Really large bulbs. Excellent product.
                  • Verified Purchase
                  Showing 1-10 of 10 reviews