Propagating Bulbs

 

HomePage

Vegetatively propagating bulbs such as Daffodils or Alliums essentially relies upon the natural processes by which bulbs produce new daughter bulbs and reproduce themselves.

A bulb is essentially a base plate (a redesigned stem) to which modified leaves are attached, which as whole act as a storage organ that enables the bulb to spring back into life when its season for growth arrives.

It is a part of the natural processes of a bulb to produce offspring, which start out attached to the base plate but later separate from the parent.

We have all bought bulbs from the local garden centre, with smaller daughter bulbs still attached to the parent bulb at the base, and which with a little encouragement will separate from the parent.

It is this natural tendency for bulbs to produce new plants arising from the base plate that we are trying to harness when we try to vegetatively propagate bulbs.

However, it is not for the feint-hearted

Propagation
Techniques
Cuttings - Softwood
Cuttings - Hardwood
Cuttings - Root
Propagation of Bulbs
Propagation of Lilies
Division of Herbaceous Perennials
Division of Bulbous Plants
Growing Plants From Seed
Layering
Micro-Propagation
Equipment
The Essential Tool Kit You Will Need

 

When learning how to use this technique of propagation, be prepared for the inevitable casualties, and please do not rush into deploying this method upon your favourite bulbs unless you can afford to lose a few.


You will need: -

  • A Sharp Knife (preferably with a thin blade);

  • Horticultural Vermiculite;

  • A reasonably sized plastic bag;

  • Both Liquid and Powdered Fungicide;

  • Plus of course the Bulb you have chosen as your victim.


  1. Choose your bulb carefully, it should be healthy and free from any signs of disease or insect infestation; 

  2. Clean your bulb, removing soil and any papery outer layers;

  3. Your knife should be sterilised;

  4. Now carefully cut your bulb into quarters starting from the base plate;

  5. Next remove the embryonic flower and leaves - We do not want energy being expended on trying to repair the damaged flower and leaves, or for them to rot;

  6. At this stage you should be left with four clean bulb segments comprising only of scales and a portion of base plate;

  7. Now immerse the segments in the liquid fungicide for 5-10 minutes, then remove them and drain away the excess liquid;

  8. Now dust the bulb segments with some of the powdered fungicide;

  9. Half fill your plastic bag with moistened Vermiculite, add the bulb segments, and seal the bag;

  10. All that is now required is a suitable dark place to put your bag of bulb bits until they hopefully start to produce small bulblets arising from the base plate: The Airing Cupboard is usually the suggested place, but this can at times get too warm, however in these times of central heating almost any dark cupboard will suffice;

  11. Occasionally over the next few weeks have a look at your bag of bits to check that they are doing well, remove any material that shows signs of disease, and with luck you will see the emergence of the little bulbs you are trying to produce, where as the bulblets grow in size the scales of the parent plant will wither and dry up;


The next stage can also be a time of disaster: 

The time when you pot up your newly born bulblets.

I much prefer to leave my new bulbs attached to their base plate and plant them as as they emerge from their plastic cocoon, I feel that this subjects them to less stress whilst they adapt from the protection and warmth of where they were born, whilst others suggest that it is more beneficial to separate each bulblet with a portion of the base plate so that they can get on with the business of growing in their own unrestricted area - It is a matter of personal choice, and again like everything else in gardening, if it works for you then it must be the right thing to do. Whichever technique you use, do not expect flowering size bulbs for at least 4 years, for like bulbs grown from seed the little bulblets need time to grow.

I do hope that you will try vegetatively propagating some bulbs, it can be very rewarding.

 

 

This page was last updated on February 07, 2004

Shiraz Web Publications UK - Online Gardening Advice Collections