Scottish Rock Garden Club Forum

Cultivation => Cultivation Problems => Topic started by: Pascal B on May 04, 2011, 09:30:47 PM

Title: Leaf bleaching
Post by: Pascal B on May 04, 2011, 09:30:47 PM
I hope some of the Lilium growers with more experience than me can tell what causes the "bleaching"  of the leaves of some of my Lilium species. They are grown under glass, potted up last autumn in fresh compost and grown medium shaded. The leaves start green but after 1-2 weeks loose the deep green so the veins start to show. Not all my Lilium have it and the younger plants seem more affected than the older. Nutrient difficiency? Too warm? Or, and I hope not but... virus?
First is L. japonicum, a species which grows at low altitude so should need some warmth, second is unknown/unflowered, third is L. lophophorum
Title: Re: Leaf bleaching
Post by: johnw on May 04, 2011, 09:40:06 PM
Pascal - Looks a bit viral but they don't have the contorted leaves that I'd expect. Try some epsom salts.

johnw
Title: Re: Leaf bleaching
Post by: Pascal B on May 04, 2011, 10:28:20 PM
Thanx John, any suggestions on the dosage?
Title: Re: Leaf bleaching
Post by: johnw on May 04, 2011, 10:42:26 PM
Thanx John, any suggestions on the dosage?

It's hard to overdo it with epsom salts, maybe 15ml in 5 litres of water and water in. Others may have more scientific recommendations.  In 2 weeks you may see a difference.

johnw
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