Temperature ranges of Plant Hardiness and Gardening Zones
Zone Fahrenheit Celsius Example Cities
1
Below -50 F ...
Plant anytime from May to June or any time you'll get three to four months of warm growing days with above 75 degrees Fahrenheit during the daytime. Remember to plant after the threat of the last frost.
In general, foliage house plants grow best between 70 and 80 degrees Fahrenheit during the day and from 60 to 68 degrees Fahrenheit at night.
For chilling, the basic requirement is a cold, dark space where the temperature is below 50 degrees Fahrenheit and above 32 degrees Fahrenheit-generally between 40-45 degrees Fahrenheit is best. An unheated garage or a cellar is usually an ideal spot.
A typical winter day in Colorado may be sunny and 60 degrees Fahrenheit. High intensity sunlight, which occurs at a lower angle in the sky during the winter, heats up the south and southwest side of deciduous tree trunks.
Nightcrawlers prefer moist soil, rich in organic material, with temperatures between 68 degrees Fahrenheit and 77 F. They can survive in soils with pH ranging from 4.2 to 8.0, but they are happiest in soils with a pH of 7.0.
For the best flavor and longest storage, keep frozen foods at 0 degrees Fahrenheit or lower. Choose young, tender vegetables for freezing -- not overly mature ones (these are better canned).
To promote blooms, Lerner suggests placing Christmas cacti in locations ranging between 50 and 55 degrees Fahrenheit beginning in November.
When the soil is at least 55° Fahrenheit and has a moisture content of at least 25%, choose a spot that has not been recently tilled or otherwise cultivated.
The plant needs at least 60 percent humidity and day time temperatures of 70 to 75 degrees Fahrenheit. Nighttime temperatures should not go below 55 degrees Fahrenheit.
As a general rule, the optimal temperature for most plants is about 80 degrees Fahrenheit. Stray to far in either direction from this temperature and your plants will begin to underperform at best--and potentially start to die at worst.
It can endure temperatures as low as 23 degrees Fahrenheit and-with good air circulation-as high as 100 degrees Fahrenheit.
Rose of Sharon (Hibiscus syriacus), Zones 5-9, hardy to -20 degrees Fahrenheit. Rose of Sharon sports large pink blooms and is hardy in a variety of climates, withstanding heat, wind and frost.
Temperatures of 55° to 60° Fahrenheit at night and 65° to 70° Fahrenheit during the day will prevent soft, leggy growth and minimize disease troubles. Individual varieties may vary. Check packet instructions. Thin out to one seedling per pot.
Lawn spraying is most effective when temperatures are below 85 degrees Fahrenheit. Above that, the chemicals will still kill weeds, but they will also kill your grass. And weeds like crabgrass thrive in those high temperatures, while grass suffers.
Plant the seed-stock as soon as your backyard garden soil gets to about 40 Fahrenheit. It's ideal once the temperatures are about 55-75 Fahrenheit. It takes approximately 7-14 days to come up.
Butterflies are cold blooded and fly only when temperatures rise above 60 degrees Fahrenheit. They need a place to roost on cool, cloudy or rainy days. Shrubs, tall grasses or log piles provide suitable roosting sites.
" During the year, these six zones have their average coldest temperatures ranging from a low of -30 degrees Fahrenheit to a maximum of 30 degrees Fahrenheit.
Ideally a worm compost bin should be located in areas where the temperatures are between 40 to 80 degrees Fahrenheit. Red worms generally prefer temperatures in the 55 to 77 degree range.
For example, the average annual minimum temperature in Zone 2 is -50 to -40 degrees Fahrenheit, and the average annual minimum lowest temperature in zone 10 is +30 to +40 degrees Fahrenheit.
Perfectly suited to hot, dry summers and moderate winters, these cacti can be hardy to -40 degrees Fahrenheit and grow in brutally hot exposures that few plants can withstand.
Bell peppers need temperatures above 60 degrees Fahrenheit to grow well. Avoid planting them too early in the growing season, and protect plants from cold temperatures.
Seeds germination usually happens in warmer soils than the actual plants grow in, generally over 65 degrees Fahrenheit for garden vegetables*.
Plant geraniums in the spring, but be sure all danger of frost has passed, as they won't germinate or bloom until the soil temperature is above 60 degrees Fahrenheit. Geraniums are usually propagated through cuttings taken from older geranium plants.
Wait for a hard, killing frost, usually after the temperature has dropped to 13-18 degrees Fahrenheit for several nights. Covering too early will encourage rodents to nest in your mounds.
If you are growing perennials in a region where the temperature drops below 0 degrees Fahrenheit, it's a good idea to take some special precautions to ensure that your plants survive the winter.
Start Black Seeded Simpson lettuce planting just before the last frost in your area, when temperatures rise to 45 degrees Fahrenheit.
Keep the soil moist but not soggy, and at a temperature of at least 70 degrees Fahrenheit. When roots appear, pot the tubers individually. Maintain them in a warm, moderately lit place until all danger of frost has passed.
10/ Do not plant anything until the temperature of the bed has dropped below 65 degrees Fahrenheit.
First, the deck sealer should not be applied if the temperature is below 50 degrees Fahrenheit and if rain is forecasted in the next 24 hours. Otherwise the sealant may not absorb properly, nor dry properly.
and basket-flowers begin to bloom in late spring and continue through summer. C. americana, an annual native to the south central and southeastern United States, is hardy to Zone 4. Centaurea can tolerate low temperatures of 41 degrees Fahrenheit.
(Note: flower bulb companies can supply you with pre-chilled bulbs) This chilling is accomplished by keeping the potted bulbs in a dimly lit area at a temperature between a steady 35 and 45 degrees Fahrenheit for a period of 12 to 17 weeks.
but will make for easier work in the spring and will protect less hardy plants from the cold. Start closing your garden down when there is frost in the forecast or the temperature consistently starts to drop to the low 40's or mid-30's (Fahrenheit), ...
Consequently, as the moisture content continues to rise, the fungi flourish. For food, fungi generally metabolize starches, sugars, proteins, fats, and cellulose. Temperatures from 70 and 90 degrees Fahrenheit are ideal for fungi growth.
of transpiration, the plants on an urban green roof can help lower temperatures around them, alleviating the climatic phenomenon known as heat island effect, whereby city and suburban districts are noticeably warmer (up to 10 degrees Fahrenheit) than ...
When the pile's internal temperature reaches about 130 degrees Fahrenheit, start turning the material in the pile.
 See also: Plant, Flower, Water, Light, Soil
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