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13 messages
09/07/2013 at 21:50

Hi,

I've got several lavenders in pots and on some the leaves are turning yellow.

I've read a couple of articles where it says this can be caused by under or over watering ...

Any idea which is more likely to be the case or could it be something else?

I tend to give them 2 or 3 good waters a week.

Thanks.

 

09/07/2013 at 21:58

I'd go for over watering Nigel, lavenders thrive in a hot, dry spot and well drained 'Mediterranean ' soil.

09/07/2013 at 22:00

I agree with PaulaH and if they're not in a free-draining gritty compost I'd repot them now. 

09/07/2013 at 23:38

That sounds like too much watering to me Nigel .....in this  heat you might get away with it.  Lavenders like it dry...ish.  If I grew them in containers I would add 25 % perlite to the mix

10/07/2013 at 00:03

I grow lavender in pots and usually wait for them to droop slightly before I water them.

10/07/2013 at 21:03

Could be a combination of too much water or nutrient  deficiency. How large is the container relative to plant?

11/07/2013 at 00:18
Gavin Stevens wrote (see)

Could be a combination of too much water or nutrient  deficiency. How large is the container relative to plant?

Containers are terracota around 15inch diameter. The oldest plant is around 1.5 years old so I don't think they should be pot bound.

11/07/2013 at 08:59

Nigel, those pots should be all right for the moment. What sort of mix do you have in the pots? I agree with the others (above). The mix needs to be very very well drained. Lavender thrives in dry conditions. If the roots become waterlogged, the plant is history.

11/07/2013 at 17:10

I put plenty of grit into the pots when they were planted up and when I water they seem to drain freely.

12/07/2013 at 16:06

Okay, try cutting back on the watering.

12/07/2013 at 16:10

Have you got them planted in multi purpose? Even with added grit they don't really like it. John Innes no 3 is ideal for med plants.

12/07/2013 at 16:33

I'm pretty sure there was about 70% John Innes 2/3 and 30% multi purpose.

12/07/2013 at 16:38

Sounds ok so agree with others just water less.

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13 messages