The Sweet Peas feel a pinch of success

If your sweet peas are anything like mine, they are growing very happily on the windowsill at the moment. In fact, a bit too well. It’s time to be brutal with them.

I sowed my Unwins Sweet Pea ‘Cupani’ seeds in my propagator back in January, and by now they would be climbing several feet up anything they could find if given the chance. But I’ve been doing them a favour – i’ve been nipping the buds out.

This might seem a bit destructive but by doing so, you’re not only going to avoid having sweet peas up your curtains, but you’re also going to encourage the remaining plant to bulk up – grow sturdy and strong – which is what your plants will need if they face the real risk of a flock of marauding aphids like mine did last year.

To do this, wait for about 4 tiers of leaves, and then pinch out the stem growth after the second set of lower leaves. This will mean that growth will be encouraged from low down on the plant – helping it to grow stronger – stem-wise and root wise. A stronger stem means it’s a stronger plant, and better roots means that the plant will be able to better at finding nutrients in the soil.

A Sweet Pea 'Cupani' flower
Last year’s Sweet Pea ‘Cupani’ produced few flowers after battling with aphids.

It’s almost time for sweet peas to go start going outside – but as we’ve had some pretty hard frosts here in the last few days – i’ve held them back. It’s best to do a gradual acclimatisation, so i’ll be putting them out during the day, and bringing them back in at night for the next week or so just so that the shock doesn’t kill them before planting them out.

Fortunately, I have already seen some Ladybirds (Ladybugs) in the garden, and hopefully the Nasturtiums that I planted last week will bring the Hoverflies back – both of which will enjoy munching on aphids.

For more about Sweet Pea varieties and how to grow them, check out the National Sweet Pea Society.

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