
Plants have all sorts of ways to tell what time of year it is and where they are. Hyacinths need to go through a period of several weeks (preferably at least 10) of cool darkness, so they can be fooled into thinking they're underground and it's spring. Many seeds and storage organs need a prolonged period of temperatures around freezing before they will flower, a process called 'vernalisation' (some seeds need cold treatment before they will germinate; a process called 'stratification') . Fortunately, this fact has been accommodated by the retailers who have pre-treated their wares. Special 'Christmas' hyacinths have already been heat (cold) treated, so all we need do is plant them cool and dark till they come through, then place them gradually into a light.
Note that the shoots are just starting developing chlorophyll (the stuff they need for photosynthesis) and turning green in the light. The compost is mouldy and too damp. This could be because I used multi-purpose instead of bulb fibre. I know it's not ideal, but the idea of 'My Broken Garden' is one-size-fits-all, if possible, since this keeps the costs down.
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