Can you grow Eryngium Golden Neptune (Sea Holly) in pots?

That’s the question. My sister gifted me two in 2l pots and I know they will not do well in my Clay soil, so the question is, can I grow them in pots, and how big should they be?

Thanks!

Hi James I would say yes you can grow them in pots, they like poor well drained soil, and can reach about 0.5meter in height and spread. so would need a half decent pot to grow in 2-4 inches bigger than 2litres possibly a 5 litre pot. let the flowers go to seed as they are great for wildlife then cut the stems down at the end of winter. they are lovely plants to have.

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Thank you Nick, I will try this.

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This is probably a stupid question but… can you buy poor soil?

All I have is wool compost and my clay so everything is pretty rich!

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you can buy cheap value soils from builders/landscape merchants but its normally in bulk, but you’d probably get away with mixing a load of grit in to the compost to make the free draining soil they like.

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