| We planted a Polygala Myrtifolia Grandiflora about 18 months ago, and notice that the older leaves are much paler than the newer growth. We have a well-established Polygala in our back garden, and the foliage on this is much darker. However, it may not be exactly the same as the one we planted, as the foliage is slightly different (leaves are a little longer).
Does this yellowing of foliage on the newer plant indicate a deficiency of some kind? Can anyone suggest what fertiliser/s or supplements we should use?
We are situated in Perth, WA, and our soil is very sandy/alkaline, although we do use plenty of soil conditioners, compost, manure and slow-release fertiliser when we plant.
We'd be grateful for any advice. Thanks in anticipation. |
