To layer bulbs or not to layer bulbs?
I have a dilemma about whether or not to layer spring bulbs when planting them in pots, as I will be doing over the next few weeks. The idea of layering seems to be to get a greater number of bulbs into a pot, which of course means you get more flowers out of each pot when the spring comes. And supposedly, if you plant, say, narcissi in two layers, then the top row of bulbs will flower first, and then a little later on (perhaps a week or two) you get the bottom row come into bloom. So the flowering will be more spread out over a slightly longer duration. But then does it not break the rules on how deep you should plant a bulb? The normal planting depth is said to be two times the bulbs own depth. If you plant some deep enough for a 'bottom row', then will not those use much of their energy and resources just getting their shoots to the surface? And if I want to plant, say, some tulips and some narcissi in the same pot, and both types of bulbs are about the same size, which should go deeper than which? Questions galore. Help, help! S.O.S.! Planting time is nigh.
- 30 Sep, 2009