| Floors | Comments |
|---|---|
| FLOORS: Greenhouse Bare earth allows twice as much heat to leak away as concrete or brick; but levelled earth is still considered best for growing. A63-371; OD71-192Concrete floor and cymbidium growing do not go well together; cover the floor with three inches of peat moss. OR75-84Concrete floors have been successful for years with some; they are not preferred; they hold little humidity. A69-1083 | 0 |
| FLOORS: Greenhouses Earth floors can be partly insulated in winter by spreading polyethylene over a rough surface; it may also cover a source of botrytis spores; can be removed in summer. RMH ; the heat loss through an earth floor is approximately eight percent of the total. AU71-135 | 0 |