London (change)
Today 20°C / 11°C
Tomorrow 18°C / 10°C
16 messages
15/08/2013 at 18:34

As above....

15/08/2013 at 22:24

How big are the pots? How big are the buddleias? Although buddleias can be found growing out of chimney pots on empty buildings, they do have a need for a deep root run. They won't be happy if their roots are going round and round in a pot with nowhere else to go. Can you take them out of their posts and have a look to see if their roots are squashed?

16/08/2013 at 22:06

Check the roots for vine weevil grubs - white body, brown head. There is another buddleias thread with a similar problem - check it out.

Cut back on the watering, they like to be dry.

16/08/2013 at 22:13

They grow so quickly, they outgrow pot and food. Some I grew from cuttings taken last autumn have already filled a 2L pot and looking for more. Starvation would be my guess

17/08/2013 at 12:06

hi, hope you dont mind me butting in on this post, my dwarf buddlies, are in pots, i planted them last year, they where lovely, but this year the flowers are tiny, and dont look very happy, any ideas anyone, thanks

17/08/2013 at 12:48

starvation, even the dwarfs are fast growers

17/08/2013 at 12:56

Im not convinced by these dwarf buddleias. There are better "dwarf" shrubs around.  For blues, for example, caryopteris and ceratostigma are far better tham the blue-ish buddleias. 

Buddleias should be tall albeit ungainly bee and butterfly magnets swaying 7' or more high

17/08/2013 at 13:02

hi nutcutlet, what do you mean by starvation? thanks verdun, i will make a note of the above, i just wanted something in my large pots to encourage beas and butterflies

17/08/2013 at 13:55

Lynne, go for an agastache like raspberry summer.  Mix plenty of grit or perlite in, and leave in a hot dry spot amd the bees will swarm around it all summer.  This is a dwarfish variety with .......well, raspberry coloured flowers.  Lovely thing. Perennial if you overwinter in GH

17/08/2013 at 14:06

lynne, i meant that stage when the roots ha ve filed the pot and the remaining compost can't retain enough water for the plant to take up any plant food provided

17/08/2013 at 15:24

thanks for all your advice, verdun, your agastache sounds lovely, but i have got nowhere to overwinter, and my planters are heavy stone. thanks again everyone  

 

17/08/2013 at 18:19

Several friends have commented that their Buddleias haven't bloomed well this year. I was expecting great things this year for the Big Butterfly Count from mine but it has produced a miserable show to date. They like dry zones so maybe last summer and our cold wet spring were just too soggy for plants planted where the roots were saturated?

19/08/2013 at 17:08

Thanks everyone.  They are all dwarf and have great colourful flowers but the lower leaves are yellowing.Re-potted a couple too, but no change....

19/08/2013 at 21:51

On my allotment my buddliea has yellow leaves, although it has flowered really well.  I thought  maybe it needed a boost and I would give it a feed of chicken manure pellets that I use on the plot.

19/08/2013 at 22:18

Lindsey, you are going to have to wait for more than a few days to see a change. Give them a week or two in their new pots.

19/08/2013 at 23:52

Daisy, is your allotment on acid soil?  Buddleias shouldn't really need feeding. They are best left without too much care.

email image
16 messages