Raised garden beds

morsel1, Sep 10, 8:18am
Is there any reason why H4 retaining timber cannot be used for raised vegetable beds ?

ryanm2, Sep 10, 8:23am
if you line the inside, the chemicals from the timber treatment shouldn't leach into the soil too much. Good for big broccoli though.

franken1, Sep 10, 8:25am
There can be some leaching of chemicals from the timber into the soil close to the timber. To reduce possible contamination, line the sides with polythene before filling it with soil.

tub4, Sep 11, 7:05am
All of ours gardens are raised using H4 retaining timber, we stapled polythene double thickness all the way around the inside from the top to a couple of hundred mm below the timber.
We found .450 tall with .150x50 on it's flat makes a good seat as well as a place to sit your cuppa while tending your patch

gabbysnana, Sep 11, 7:24am
not at all.

amasser, Sep 30, 6:13pm
Macrocarpa sleepers last very well.