Jade Frost Care

Jade Frost requires light watering, so don’t worry too much if you forget to give it a good watering from time to time. Allow the soil to dry before watering again. Normal rainfall water should be enough for it to grow if planted outside; however, check the spot where you planted it to make sure it does not have water accumulation.

Sea Holly is not an invasive plant, so there is no need for too much pruning. Cut the flowers after the blooming period, so the plant re-purposes its nutrients to prepare for winter.

Use a slow-release fertilizer once in springtime to help the plant bloom during summer. That should be enough to make the flowers bloom and bring the indigo color pop to your garden.

Eryngiums are sun lovers, so you can keep it in full sun all summer long without worrying that your plant will get burned. The “worse” way it can be affected is that the flowers start to dry, but that is on a positive note, as they are great botanical decorations or add-ons in flower bouquets.

Sea Holly is not pretentious when it comes to soil; you can plant it in any type of soil as long as it is well-draining. It prefers sandy, gritty soil. It is also a great plant for soils with higher salt levels in coastal areas, although they usually grow in grasslands in their natural habitat.

You can propagate Jade Frost by division, seeds, or cuttings, but the cuttings method is the fastest and most efficient, as division is not always successful because the plant could have a hard time to re-establish. Cut a healthy part of the roots and place it directly into the soil. Do this process in late winter to make sure that the plant has enough time to establish and bloom the next summer.

Jade Frost has its hardiness in the name of being a frost-resistant plant that can thrive in conditions where other plants will start to fade away. It can be kept in temperatures as low as 10 °F (-12 °C), and summer temperatures will be just right for it, so there is no need to worry about temperature levels with this plant.

You can keep this plant in a container, although it is most commonly planted directly in the garden soil. Choose a container that has drainage holes, as Sea Holly is one to enjoy dry, sandy soil.

If you grow Sea Holly, you can already say you have a vegetable garden! Kind of. Jade Frost is part of the Apiaceae family, which is the same family carrots come from and what they have in common is that the root of Sea Holly is edible, along with its young leaves. Some time ago, these roots were candied and sold as a sweet remedy for a sore throat.