Hippeastrum: Greenhouse Plants
W – warm, minimum of 13°C (55°F)
The plants we grow today which come in a wide variety of colour and shade are hybrids that have been crossed and inter-crossed over the years. Most growers who have acquired the bulbs ready for potting in winter are unsure about the subsequent resting and growing periods. The important thing to know is that we only allow these plants to die down for our own convenience. They are virtually evergreen and I know a lot of people who keep them growing all year round with spectacular results. Normally one allows the leaves to develop after flowering, giving them plenty of water and food until no more leaves seem to be appearing. Gradually reduce watering until the leaves have died down. This will occur about September time and from now on plants are kept dry and cool. When they are started up again is really up to you; the earliest should be about December in a temperature of 13°C (55°F). However, mostly the plants are started off again in January or February either top dressing them or repotting by planting the bulb back into the pot so that it is half buried. Once the flower spike begins to show it is better to raise the temperature to a minimum of 15°C (60°F). When the flowers open they want to be kept cooler again to make them last longer. If you want a batch of these the cheapest way to achieve this is by sowing seed in spring or when ripe by just covering it and replacing it in a temperature of 15-18°C (60-65°F). When growing young plants on to flowering size they should not be dried off and rested.