Many
rockery plants for sale in garden centres are easily grown from
seed and late autumn to early spring is the best time to sow them.
The reason for this is that the seeds require a period of cold or
even frost before they will germinate.
You will need:-
- An old wooden cupboard drawer.
- 2 bags of sharp sand.
- 1 bag of John Innes seed and cutting compost.
- 1 bag multipurpose compost.
- A bucket of ¼ inch stone chippings.
- Some 3 inch - 4 inch clay pots.
1. Drill 4 holes in the base of the drawer and cover these with
a flat piece of slate or broken flower pot.
2. Place the drawer in a place that is exposed to the frost and
where it is convenient to check on when the seedlings appear. Keep
it clear of the soil by standing the drawer on 4 bricks or pieces
of timber.
3. Fill the drawer to within 1 inch of the rim with sharp sand.
4. Compost - The most important factor with alpines is drainage
so mix the compost as follows:
- 1 part multipurpose compost.
- 1 part John Innes.
- 1 part sharp sand.
Place a few chippings at the bottom
of the clay plant pots and fill to within ¼ inch of the rim.
5. Gently scatter your seed evenly over the surface and cover them
with ¼ inch of stone chippings.
6. Water the pot gently with a fine rose.
7. Plunge the pot to below ½ inch below its rim in the box
of sharp sand.
8. Leave the pot undisturbed till seedlings appear in spring. When
these are ½ to 1 inch tall prick them out into 3 inch pots
and grow on.

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