Soil heating cables deliver the right temperature necessary for the propagation of seeds and cuttings.
Soil heating cable.
They are water and moisture resistant which makes them ideal for use with indoor propagators.
Use 4 linear feet of cable to warm each square foot of planting area.
Then add another layer of sand or soil to the desired depth deeper for less heat shallower for more.
The cable is then laid onto a 5cm bed of sharp sand horticultural and covered with a further 5cm of sand.
Cables are covered with a tough moisture proof pvc jacket.
While ambient soild temp was 60 degrees in april and may this heat cable raised the soil temp to 80 degrees day and night.
Use indoors or out to get a jump start to your growing season.
Soil heating cables can be used indoors or outdoors in cold frames or greenhouses.
I planted a control group of plants in unheated soil.
Hydrofarm jshc12 jump start water resistant ground 12 foot heating cable with built in thermostat for indoor outdoor garden containers cold frames and soil 2 pack 3 4 out of 5 stars 3 42 99 42.
P503212 economy heat cable 12 ft.
As the soil in the greenhouse usually takes time to warm up naturally.
Lay down two inches of sand and then arrange the cables so that they are spaced about 8cm 3 apart.
The most useful sizes are 40 60 or 80 feet.
The cables use 3 5 watts per linear foot.
The soil cables provide constant heat and so the temperature of the soil should be constantly monitored controlled by a thermostat.
You may also choose to size the cable to suit your own space.
29 95 these insulated soil heating cables gently warm your growing medium for faster germination and better growth.
Soil warming cable built in thermostat automatically activates cables when soil temperature is below 74 f.
Bury the cables in soil or soil based mixtures so that no portion of the colored heating section is visible.
Using soil warming cables will allow you to plant earlier regardless the weather and raise better specimens.
A 60 foot cable can typically heat a 6 6 foot hotbed.
As of may 26 the heated plants are 6 times larger while the unheated plants haven t done much.
Each cable is adapted to be used with ordinary electric service.
Speeds germination and seedling growth producing large healthy plants ready for transplanting.