Similar Questions

G
10:29AM, 21 Oct 2009
Answer: When growing herbs in pots ensure that they are...
Category: Fertilising
Expert
10:29AM, 21 Oct 2009
Toni
09:11AM, 22 Oct 2009
Answer: Hardenbergia can develop leaf spots which can b...
Category: Diseases
Expert
09:11AM, 22 Oct 2009
chris
Bouganvillea leaf drop

I have 2 30 year old bouganvillea in large pots, they are in very coarse soil, only use organic fertiliser, water sparingly and are in full sun. They have developed browning then falling leaves, from the top, branches are still green in the cambium, have repotted one and roots just fell away. No lawn grubs. Have started applying yates anti rot but wondering if I need a watered in mix as opposed to a sytemic spray,I have been in bonsai for 28 years and have even older boug's and have never experienced this before.
Thanks
Chris

Submitted: 10:05AM, 26 Nov 2009
Answer: Hi Chris, hard to say without seeing but it sounds like heat and dry have affected the plants at several times recently. Bougainvillea doesnt have a terribly vigorous root system and large areas of it can die off if stressed. For browning to occur from the top makes me wonder if a fertiliser (even an organic product) has been applied during a hot spell while the soil might have been a little dry? Antirot will help stem any root rot and I would also be giving seaweed solution every 10 days. Prune away stems, that have lost all leaves, back to healthy parts.
Category: Diseases
Answered: 10:13AM, 26 Nov 2009

Comments

This area is for general comments from members of the public. Some questions or comments may not receive a reply from Yates. For specific gardening advice visit Ask an expert Alternatively you may wish to contact us.