Can be used directly in soil, compost, mushroom and heated seed beds.
Useful when propagating or planting out etc.
Displays temperature in both degrees Centigrade & Fahrenheit. Range -30 to +50 *C (-20 to +120*F)
Dimensions: 6" (15cm) long.
For accurate results insert the thermometer between 2 to 3 inches into the compost or soil & check the temperature after 3 minutes.
Here's a simple guide to MINIMUM compost & soil temperature requirements for seed germination.
5*C (40*F) - Lettuce, Pea, Radish.
7*C (45*F) - Beetroot, Carrot, Leek, Parsnip, Spinach, Swede, Turnip.
10*C (50*F) - Broad Bean, Broccoli, Brussel Sprout, Cabbage, Onion, Spring Onion.
13*C (55*F) - French Bean, Runner Bean, Calabrese, Cauliflower.
18*C (65*F) - Marrow, Courgette, Sweet Corn, Tomato.