Do these plants need plant food?

Question

http://www.geocities.com/usamaxmexico/plants.html?1168734525046
the first one is an orange tree, the second one is a grapefruit one, the third one is a lemon one, and the last one is an avocado one.
Thanks for your help!

Answer 1

Hello Max -

I looked at your photos. Are these recent transplants or just moved, etc?

The last one (avocado) concerns me because of the drooping of the leaves, etc. However, the citrus ones (based on the pic) appear fine. I am guessing that you live in SoCal based on the selection of plants which you have --- with that in mind, I would venture a guess that the cold snap we are experiencing is affecting your plants and is not so much a result of "food" or transplant shock, etc. The other thing which was difficult to tell from your photos was the planting hole --- they almost seem planted too deep/low for what I would expect.

My usual advice (assuming these are 'new/transplanted' plants') follow up with "Vit-B1" for its rooting hormone contained within. Do not fertilize right now in Winter (particularly if they are new to you) - let them get adjusted. Do not overwater at this point; but, keep them moist. And, as weird as it sounds -- try to protect from frost because of the specimens you have selected here.

Good luck,
Chris

Answer 2

All plants need plant food. At a minimum water with 20-20-20 once a month, except in the fruit producing months. As the flowers start to bud, fertilize with 15-30-15, or use Miracle Gro.

Answer 3

If they are indoor hybrids Yes. If they are outdoor trees No. Indoor hybrids need very little food and only during the active growing season. Feeding during the winter will cause harm and may even kill them. Try using 25% of the recommended strength and only every three months or so.

Answer 4

Potted plants are like pets in a coop. They can not seek out for themselves what they need. Unless you provide it, they go without and eventually starve. If it grows, it needs to be fed.