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Latest posts by BobTheGardener

What have I grown?

Posted: 26/07/2015 at 16:06

Some varieties of dahlia can grow to 6ft tall from seed in a single year!  Most will grow to between 1 and 3 feet tall though.


Posted: 25/07/2015 at 23:58

I grow all of my dahlias from seed - some from 'giant' seed mixes which grow to to 6ft in a single year which always amazes me!   I sometime lift the odd tuber and store over the winter if they are of a particularly lovely form and worth saving but I like the random surprises which come from seed.

grey mites on carrots, danger?

Posted: 25/07/2015 at 23:51

The colonies may increase and cause dieback of some of the foliage, potentially affecting the size of the carrots but probably not by much.  As it looks like your carrots are already a good size I wouldn't worry too much about them if you can't face squishing them! 

plant identity

Posted: 25/07/2015 at 23:41

I agree nut - I think it is Yellow Wolfsbane (Aconitum lycoctonum ssp. vulparia):


Leaking wooden greenhouse

Posted: 25/07/2015 at 18:42
KT53 wrote (see)

The surfaces will need to be dry for silicone sealant to adhere.  I would wait until you have a few dry days before trying.

I'll second that advice.

grey mites on carrots, danger?

Posted: 25/07/2015 at 18:40

Aphids.  Try rubbing them off with your fingers and/or have a look around your garden for ladybirds on other plants and transfer them to the carrots.

Disappointing bread beans.

Posted: 25/07/2015 at 18:37

Sounds like poor pollination.  If there are few bees around when they are in flower not many beans will be produced in each pod, and completely unpollinated flowers will just fall off.  Not much you can do about it other than to try planting them at a different time next year or hope for a warmer spring.  Also try to grow bulbs and flowers which blossom from late winter onwards to help attract bees to the area.

What variety are they?

spider MIte

Posted: 25/07/2015 at 16:41

Spraying with water certainly helps prevent them getiing hold but once you have a heavy infestation I'm afraid to say that it is not very effective as it doesn't actually kill them.

Potatoes & Carrots

Posted: 25/07/2015 at 15:44

There's a great guide to the best potato varieties for various cooking methods here:

You just about have time to grow some carrots now - choose early varieties such as Nantes early, Napoli, Nelson and Mokum.


spider MIte

Posted: 25/07/2015 at 15:34

Try SB plant invigorator which sort of sticks them in place so they eventually die.  It also contains a foliar feed to help the plants grow.  The only thing I've found truly effective are spider mite predators (Phytoseilus.)  The suppliers of those often also recommend SB as an initial treatment before applying the predator mites.

Spider mites have evolved to be immune to most insecticides.

Discussions started by BobTheGardener


Hope it finds it's way home 
Replies: 3    Views: 196
Last Post: 26/04/2016 at 18:22

Vine weevils

..ate all of my winter carrots! 
Replies: 8    Views: 1007
Last Post: 01/01/2016 at 22:01

Huge pest problem

Don't think netting will work 
Replies: 10    Views: 653
Last Post: 19/12/2015 at 21:00

Renovate or remove privet hedge?

Replace or cut back hard? 
Replies: 19    Views: 1131
Last Post: 20/09/2015 at 13:33


No real rain here for weeks 
Replies: 11    Views: 494
Last Post: 07/06/2015 at 18:41

Little Red Devils (Lily beetles)

They're about now! 
Replies: 1    Views: 514
Last Post: 06/04/2015 at 17:03

Christmas has come early

New trees 
Replies: 9    Views: 1105
Last Post: 19/12/2014 at 16:52

Anyone for squirrel crumble?

Thieving rodents 
Replies: 12    Views: 909
Last Post: 27/11/2014 at 21:12

Plant ID quizzes

Have fun identifying plants! 
Replies: 16    Views: 884
Last Post: 14/09/2014 at 13:17

Watering dried-out pots

Tip to help to stop water running straight through 
Replies: 13    Views: 819
Last Post: 28/07/2014 at 12:28

Blackfly - ladybirds to the rescue!

Broad bean tip blackfly infestation 
Replies: 2    Views: 690
Last Post: 13/07/2014 at 18:04

Bob's guide to picking soft fruit

Only fto be read by your household's main gardener! 
Replies: 3    Views: 596
Last Post: 05/07/2014 at 18:52

Lovely surprise

I went down the garden in the gloom.. 
Replies: 15    Views: 973
Last Post: 18/06/2014 at 14:32

Dragonfly/Darter/Mayfly ID?

Flew into the polytunnel for a while 
Replies: 6    Views: 868
Last Post: 01/06/2014 at 21:44

A week of rain = jungle garden!

It's been too wet to really do anything outside.. 
Replies: 16    Views: 1355
Last Post: 01/06/2014 at 17:42
1 to 15 of 32 threads