Forcing bulbs to bloom, when used in vases, can be trickier than one might think. After doing some research on the internet, this is what I've found.
There are two types of bulbs for indoor growing: those you need to chill and those you don't need to chill . Below, I'll explain how to tell the difference.
Bulbs That Don't Need Chilling
These bulbs are native to warm climates, so they don't require a cooling period to trigger blooms. Amaryllis and Paperwhite Narcissus both belong in this category.
Bulbs that Do Need Chilling
All other spring bulbs require a chilling period before they'll bloom. This includes Tulips, Daffodils, Hyacinths, Crocus, Dutch Iris and Scilla. Cool temperatures stimulate a biochemical response inside the bulb that "turns on" the embryonic flower so it starts developing. Most bulbs require 16 to 18 weeks of cold before the flower is fully formed. At that point, they're ready for light and warmth. If you cut the cooking time short, the flowers may emerge but they will probably be stunted and deformed.
For indoor blooms, the easiest bulbs are Crocus, Hyacinths, Muscari, and Mini-Daffodils. Tulips and standard Daffodils can also be forced, but they require more careful attention.
There are a few things you need to do first in order to ensure your tulips will bloom.
1. Bigger IS Always Better:
Choose large tulip bulbs from your garden center, grocery store, local nursery or online. The larger the bulb, the bigger the bloom. Pass on discount, smaller bulbs. You will not be happy with the results.
2. Bulbs need a specific amount of cold-sleepy time.
Most tulips need between 12-15 weeks. The cold-sleepy time will be listed on the bulb package. Each variety can vary. You can buy your bulbs and then place them in your refrigerator for this amount of time. Keep them away from apples, though. The gas emitted from fruit like apples will prevent them from blooming. So a garage fridge is a great option. Always chill for the recommended time and never less. Chilling for less time will result in zero blooms.
Once you have bought your bulbs and stored them in a cool place for the recommended time, here's what you do next.
1. Grab a tall vase, the taller vase will help support your Tulips when growing.
2. Go to your local craft, hobby store or I've even found these at the dollar store. The round glass floral marbles, you can purchase them here. You can choose between clear, blue, green or multi-colored.
3. Place marbles in a vase and set bulbs on marbles. Fill with water until just above the marbles and place in well light but the cool area of your home.
Soon you will see the bulbs growing, once green leaves are almost to the top of your vase or just above. Depending on your vase size, you can place them in a warmer, sunnier not hot location of your home or kitchen.
Want a way to cheat and not have to wait weeks?
1. Buy potted bulbs from the grocery store, garden center, or local nursery. Choose ones that have not bloomed yet.
2. Empty the pot, and gently shake off all the loose soil from the bulbs, all the while, protecting the tender roots.
3. Rinse each bulb under cool water to wash away the soil.
4. Trim roots to 2 inches long with scissors and place in a glass vase with glass beads. Follow the rest of the directions as listed above.
BOOM! :)
Now you have a beautiful and easy Easter decoration!
