Alpine sea holly 'Superbum'

Eryngium alpinum

How to grow Alpine sea holly 'Superbum'

  • Full Sun

  • Low

Try to plant in a location that enjoys full sun and remember to apply water fairly sparingly. Keep in mind when planting that Superbum is thought of as hardy, so this plant will survive close to or on freezing temperatures.

Growing Superbum from seed

By our calculations, you should look at sowing Superbum about 56 days before your last frost date.

Transplanting Superbum

As Superbum is hardy, ensure temperatures are mild enough to plant out - wait until after your last frost date to be on the safe side.

Harvesting Superbum