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Eryngium Neptune's Gold

Golden Sea Holly

An ideal plant for the front of a boarder

The first golden-leaved sea holly and what a fabulous plant it is. In the summer it produces lots of electric blue, thistle-like flowers surrounded by colourful, leaf-like bracts that are silvery blue at the base and turn gold towards the tips.


It loves the sun, and is perfect for coastal gardens too. Plant near the front of a sunny border, in a rock or gravel garden for a striking effect, it also looks great in container.


Plant them in any well-drained soil that does not stay wet in winter. Place some coarse grit or sand in the base of the planting hole if your soil is heavy and wet in winter. Leave the faded flower heads for added interest in autumn.

Plant details

In depth plant information

Property Value
Plant type Perennial herbaceous
Flower colour
Foliage colour
Typically available April - September
Season of interest Summer
Flowering June - August
Evergreen No
Plant height 40 cm - 50 cm
Plant width 30 cm - 40 cm
Fragrant flowers No
Attracts bees No
Attracts butterflies No
Plant height in 5 years 45 cm
Hardiness zone (?) H4

Will perform best in these conditions

Property Value
Soil type Chalk, Loam, Sand
Light exposure Full sun
Soil drainage Well drained
Planting instructions

Water the plant in its pot thoroughly before planting – give it a good soaking. Prepare the area by digging a hole twice the size of the pot. Dig compost into the base of the hole. Remove the pot and position the plant in the hole, with the top of the rootball about level with the surrounding soil. Refill the planting hole with a mixture of garden soil and compost, firming as you go. Water in well and keep well watered during the plant's first year.

Planting site Wildlife garden, Gravel garden, Flower border and beds, Cottage garden, Informal garden, Coastal or drought resistant

Typically available

From April to September