Buy our tulip bulbs through our Amazon store:

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10 pack - Fabio (Red and Yellow)
25 pack - Fabio (Red and Yellow)
10 pack - Passionale Purple
25 pack - Passionale Purple
10 pack - Kikomachi (Yellow)
25 pack - Kikomachi (Yellow)
10 pack - Carola (Pink)
25 pack - Carola (Pink)
10 pack - White Marvel
25 pack - White Marvel
10 pack - Guus Papendrecht (Red and White)
25 pack - Guus Papendrecht (Red and White)
10 pack - Princess Irene (Orange)
25 pack - Princess Irene (Orange)
10 pack - Dominiek (Red)
25 pack - Dominiek (Red)
10 pack - Monte Carlo (Yellow)
25 pack - Monte Carlo (Yellow)

Hardiness Zones:
USDA Hardiness Zones 4 - 6. There are a few that can survive in Zones 7 and 8, but most need a cold winter to bloom in successive years.
Exposure: Full sun to Partial shade.
Mature Size: Varies greatly with variety, but most tulips are between 6 - 24 inches (h) x 12 - 24 inches (w)
Bloom Period: Spring

Planting Tulips: Tulips need a chilling period and are planted in the fall. Planting depth should be about 3 times the bulb's diameter; small bulbs will be about 5-6 inches deep, larger bulbs 8-10 inches. Keep watering weekly, if it doesn't rain, until the ground freezes. Feed again when leaves emerge in the spring.
You can also plant the bulbs in pots on patios, decks or window boxes. Just make sure they have access to water.
Alternately, you could plant them in pots and enjoy seeing them come up indoors. The flowers won’t last as long as they will outside but 5 or so tulip bulbs in a six inch pot are sure way to bring spring inside!

Severe Weather Warning: If you live in the southern part of the United States, please keep your bulbs in the refrigerator (low humidity drawer) until the beginning of December, and then plant them outside. It’s possible that some mold will grow on the bulbs, which does not harm the bulb in any sort of way.

If you have planted your bulbs in planter boxes or pots, and the weather forecast predicts weather well below freezing, then protect your bulbs by either covering them in bark dust, or moving the pots close to side of the house to protect them from the frost.

Maintenance: The foliage needs to be allowed to continue growing after the petals drop to feed the bulb. However, the flower stalks can be removed to prevent them from setting seed and stealing energy from the bulb.
Once the leaves die back, they will pull easily from the soil. Bulbs prefer to be on the dry side during summer dormancy.
If you have trouble getting your tulips to come back each year it could be because the winter is not cold enough, the summer is too wet, or something has eaten the bulbs. Whatever the reason, you may prefer to grow your tulips as annuals, replanting each fall.