Poinsettia Plant Temperature Range
In order to encourage blooming poinsettia plants require long periods of darkness at night about 12 hours.
Poinsettia plant temperature range. Warmer days 65 70 f 18 21 c and cooler nights 55 60 f 13 16 c are also recommended. Therefore move the poinsettia to a location where it will not receive any nighttime light or cover it with a box. Poinsettia crops are delayed when night temperatures drop below 50f. Allow plenty of light during the day so the plant can absorb enough energy for flowering.
Poinsettias are not poisonous but the sap may cause dermatitis. They will tolerate full sun on a porch or patio but must be protected from frost or freezing temperatures. Day temperatures can vary between 75 80 f. Night temperatures should remain above 60f throughout production.
Poinsettias are tropical plants and prefer a temperature range of 65 f night and 75 f 80 f day. Dropping the temperature to about 60 f at night will not hurt the plant. Poinsettias were grown at normal greenhouse temperatures until first color. Once bracts are fully formed many growers drop temperatures to 50f at night to intensify bract coloration.
If you ve ever seen a leggy poinsettia in bloom with only a couple of sad looking leaves hanging on it was probably exposed to temperatures that were too. At this range the cold hardiness of poinsettias is below its tolerant point and leaves will drop. To keep the poinsettia in bloom as long as possible maintain a temperature of 65 to 75 f during the day. Temperatures towards the lower end of the temperature range will reduce the metabolism of the plant and prolong blooming time.
They can be grown outdoors during summer. Provide semi cool humid locations in bright indirect light with plenty of. At first color plants were moved into greenhouses that provided 16 different day night temperature combinations. Bracts are the leaves of poinsettia that change color depending on light exposure.
Poinsettias grow well in moist soil and temperatures between 65 and 70 degrees f. Poinsettia plants are ideally suited to the indoor temperatures of most homes of between 60 70 f 16 21 c. You can move the plant outdoors but poinsettia frost damage is a real threat if your area s temperatures dip below 50 degrees fahrenheit 10 c. Avoidance of hot or cold draughts is essential to prevent leaf drop.
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