London (change)
Today 21°C / 15°C
Tomorrow 16°C / 13°C

BobTheGardener


Latest posts by BobTheGardener

Our Silent Fliers.

Posted: 10/08/2014 at 13:43

Bees can see ultraviolet light which is invisible to us.  Flowers look very different to them - see these articles if interested:

http://www.bbc.co.uk/news/science-environment-11971274

Some normal/UV comparison photos here:

http://natureodes.wordpress.com/2012/06/25/see-like-a-bee-ultraviolet-flower-photography-2/

 

HELLO FORKERS!

Posted: 10/08/2014 at 12:36

The rain started at midnight here and hasn't stopped since (which I'm very thankful for!)  Like fidget, my garden is parched with soil dry down to at least a foot which I discovered when digging up some spuds the other day.  Planted 45 young leeks (well, quite old leeks actually - should have bunged them in weeks ago)  yesterday so they should now be nicely watered in!   One 50l bag of FYM per row dug in first, so they should have every chance of growing to a reasonable size.

If any of you have had enough of the rain, please ask Fairygirl to "magic it" this way - another 12h would be perfect!

Sick looking rhodi

Posted: 09/08/2014 at 17:21

There are a number of possible causes for the leaves of rhododendrons turning yellow.  Is there any chance you could take a close-up of one of the leaves which are part-green and part yellow please Lily?  We should then be able to diagnose the problem more accurately as the photo is too small to see clearly.

Likely and common causes are lack of food, drought, overwatering or alkaline soil.

Greenhouse dismantle and manual

Posted: 09/08/2014 at 15:59

Also never remove the glass from inside the greenhouse as it becomes very brittle over time (assuming horticultural glass) and the shards are lethal.  If you make sure no part of your body (or anyone elses!) is underneath a pane of glass when you remove it, you should be fine.  Try and transport it upright (say, stacked side by side in a strong cardboard or preferably wooden box) as several usually crack when stacked flat in the back of a car by the time you get home (experience speaking here!)

Something is very hungry. And very fussy

Posted: 09/08/2014 at 15:49

Pyrethrum (extracted from chrysanthemum species) is considered an organic control which is effective against flea beetles (or whatever they are.)  It has been used for centuries as a natural insecticide.

(Yet another) plant ID

Posted: 09/08/2014 at 14:14

No, glyphosate is absorbed into the leaves and is inactivated on contact with the ground so won't affect the roses or geraniums.  You must avoid spraying their leaves though!  As that might be tricky in some places you can paint the glyphosate onto the ground elder leaves with a paintbrush instead.

Does this look like excess nitrogen?

Posted: 09/08/2014 at 14:09

Oh well, you tried your best!  Maybe it did get a disease.  Sometimes plants just die for seemingly no good reason.

(Yet another) plant ID

Posted: 09/08/2014 at 14:06

Ground Elder and the only way to get rid of it is to use glyphosate, a systemic herbicide.  Once sprayed, leave it until the leaves have completely died before removing them, so the weedkiller is absorbed into the roots.  It will come back but weaker - treat the regrowth the same was and you will eventually be rid of it.  Don't try and dig the roots out as that is virtually impossible and any broken bits of root will grow into a new plant!

Plant identification needed

Posted: 09/08/2014 at 13:56

Or even cut the whole thing down to the ground.  It will almost certainly send up new shoots and will take up to 10 years to get that large again.

Plant identification needed

Posted: 09/08/2014 at 13:50

Certainly would, Dove!

Discussions started by BobTheGardener

Anyone for squirrel crumble?

Thieving rodents 
Replies: 5    Views: 195
Last Post: 25/10/2014 at 22:29

Plant ID quizzes

Have fun identifying plants! 
Replies: 16    Views: 379
Last Post: 14/09/2014 at 13:17

Watering dried-out pots

Tip to help to stop water running straight through 
Replies: 13    Views: 342
Last Post: 28/07/2014 at 12:28

Blackfly - ladybirds to the rescue!

Broad bean tip blackfly infestation 
Replies: 2    Views: 203
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: 188
Last Post: 05/07/2014 at 18:52

Lovely surprise

I went down the garden in the gloom.. 
Replies: 15    Views: 507
Last Post: 18/06/2014 at 14:32

Dragonfly/Darter/Mayfly ID?

Flew into the polytunnel for a while 
Replies: 6    Views: 321
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: 710
Last Post: 01/06/2014 at 17:42

Deep Down & Dirty: The Science of soil

Replies: 4    Views: 416
Last Post: 24/04/2014 at 11:30

Check your delphiniums for caterpillars

Look for distorted and damaged leaves near the tips 
Replies: 10    Views: 487
Last Post: 22/04/2014 at 10:58

Seed grown Wisteria finally in flower - Hooray!

Planted many years ago 
Replies: 3    Views: 249
Last Post: 15/04/2014 at 12:39

Oops!

Polytunnel growing 
Replies: 16    Views: 545
Last Post: 16/04/2014 at 19:05

First day of (meteorological) Spring

How id your garden looking 
Replies: 13    Views: 562
Last Post: 03/03/2014 at 20:31

DIY heated propagator

Making one from scratch 
Replies: 48    Views: 4310
Last Post: 30/06/2014 at 19:57

Cost of bird food

bulk vs supermarket 
Replies: 31    Views: 1736
Last Post: 10/02/2014 at 12:33
1 to 15 of 25 threads