How much water do I add to the Giant Amaryllis?
For the potted giant amaryllis or amaryllis in the vase, care should be taken not to over-water. These require very little water – too much water can cause the bulb and its roots to rot as the young bulb has reduced absorption capabilities.
Most of the nutrients and water the flower will need to bloom is already present inside the bulb. But helping it along a little can't hurt. For the Costco amaryllis (3 bulbs on wooden platform) the rule of thumb is to start with max 1" of water. After that, there is no need to water them more.
How about the waxed amaryllis?
The waxed amaryllis requires no water. The bulb has plenty of nutrients to last the season. Enjoy the carefree display :)
Cutting stems after blooming
Amaryllises do vary in the amount of stems they produce. I personally have had some with three stems even. As you may know, more stems means more reproductive potential. However, having just one stem can be a good thing because the bulb may have more energy left to grow another stem and new blooms. When your flowers have bloomed, cut the stem off near the bulb an let nature do its work. There is a pretty good chance there's more to come. They are gifts that keep on giving.
What is the best environment for the Amaryllis bulbs?
The optimal environment is a room with a lot of natural light with temperatures between 68-77 degrees (F). In the early weeks prior to sprouting, it is ok to place the potted bulbs in a dark place if the temperature is within range. After leaf and flower stem(s) begin sprouting, a lower temperature can be beneficial as long as sufficient daylight is available.
How do I prevent the Amaryllis from toppling over?
The Amaryllis grows toward the sun, so rotating the plant weekly during its growth will help ensure that the plant grows upright.
Summary of the annual planting and flowering cycle of the amaryllis for Christmas/ Holidays.
- Plant the bulbs in the second half of October or when temperatures will remain 70-80 degrees (F) for the next three weeks. This is needed for rooting and sprouting.
- After three weeks, temperatures can be slightly lower. Offer limited water.
- To bloom for Christmas/holidays, give more water to maximize flower size.
- After flowering, remove old stems. Now the bulb must grow and flowers must develop inside the bulb for the next season.
- From this period until the beginning of August, there should be good light conditions, temperatures of 70-80 degrees (F), regular watering, and a little bit fertilizer every two months.
- At the beginning of August, take the plant to a cooler place (50-60 degrees (F)) for a 10-week period to initiate stem elongation. Decrease watering.
- At the beginning of October, bring the plant back to a warmer place (70-80 degrees (F)). Remove the leaves, and start watering slightly after you see visible leaf and stem sprouting.
- Amaryllis will bloom at Christmas/holidays.
- Repeat this every year.
- Replant in fresh peat every three to four years after the cool period.