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Malcolm Harrison


Latest posts by Malcolm Harrison

31 to 36 of 36

Propogating dahlias

Posted: 28/02/2014 at 21:51

Hi Susan - you can also just let the shoots continue to grow on into an established plant keeping the compost moist and the plant inside until any last frosts have passed. You can then put it outside and later on 'stop the main stem' to allow side stems to form and a more bushy plant with more flowers on display.

All the best.

Propogating dahlias

Posted: 27/02/2014 at 20:58

Susan, putting them outside in an unheated greenhouse is still a bit risky at this time of year with the potential for frost - particularly overnight. If you are keen to start them off (as I am now) you could pot a few up in multipurpose compost and bring them inside where they will soon begin shooting. When the shoots are well formed you could then take some cuttings and pot these in mpc to root in an electric propagator at 15 - 20 deg C. They root easily and its a great way to increase your stock for giving away to friends and this way they will come true to type.

Seed swap

Posted: 05/12/2012 at 20:31

I have ordered a packet of 100+ Mixed Dahlia seeds from the National Dahlia Collection in Cornwall. They are very cheap and a good way to get started to restore a garden with beautiful blooms next summer. If you have too many then give some away to family and friends.

Growing Sweet Peas

Posted: 26/11/2012 at 20:14

I am growing dwarf sweet peas from seed this autumn using root trainers to get a better root system established. They were sown in September using an electric propagator at 15 deg C and after about 14 days most of them germinated. They were then moved into a colder mini greenhouse where they have remained since including one or two nights at freezing temperatures. I will keep them there overwinter and not pinch out the leading tip - just let the natural cold temperature growth develop the side shoots until next spring before planting out. 

Storing Dahlia Tubers

Posted: 16/11/2012 at 22:13

I have been raising and growing two varieties of Dahlia from seed over the past two years with great success. They have been grown both out in the open garden and in pots. I stored the tubers over winter in Vermiculite and replanted them in pots from which just three reshooted this summer and I must say they were both stronger growing and produced beautiful blooms from mid June right the way through till the first frosts this November - so certainly better than the year before. The others I lost to a wet spring and early summer.

This winter I, too, have many huge tubers to store and I think this time I will try  vermiculite for some and just wrapping in newspaper for the rest and see which method turns out to be the best. I have read articles where the soil is just left on the tubers and just left to dry and others where they are cleaned, washed and trimmed before storage. I would value any further tips on this issue as well.

Many thanks.    Malcolm

Storing Dahlia Tubers

Posted: 12/11/2012 at 17:46

I have read many articles and watched several video clips on methods of storing Dahlia Tubers each one differing in some way from the next. I would value comments on the essential points to watch out for during the overwintering process. My home is in South Bedfordshire.

Many thanks.

31 to 36 of 36

Discussions started by Malcolm Harrison

Stratification of Seeds

Replies: 23    Views: 632
Last Post: 28/04/2014 at 17:29

Use of Ring Culture for growing Sweet Peas

Replies: 3    Views: 242
Last Post: 04/03/2014 at 08:26

Viability of Collected Dahlia Seeds

Replies: 3    Views: 296
Last Post: 03/03/2014 at 17:07

Storing Dahlia Tubers

Replies: 27    Views: 1698
Last Post: 16/11/2013 at 14:22
4 threads returned