Sea Holly- Deep Blue

Eryngium planum Open Pollinated

  • Perennial to 80cm
  • Long lasting flowers

Standard seed packet, 50 seeds

Calculate Shipping

Economy Delivery - $3.00
Shipping FREE on orders over $25 (Small seed packets only)
Orders sent via letter | Delivery 2-6 business days | No tracking
Guaranteed delivery* by 20 business days

Parcel Delivery - $8.99
Shipping capped at $8.99 Australia wide
Order sent via Australia Post- Parcel Post | 1-6 business days | WITH TRACKING

Guaranteed delivery*

Express Delivery - $15.00
Priority Dispatch (usually within 24 hours)
Order sent via Australia Post- Express | 1+ business day | WITH TRACKING

Guaranteed delivery*


'Sea Holly- Deep Blue' seeds

Eryngium planum

  • Perennial to 80cm
  • Long lasting flowers

Perennial to 80cm. Dark green compact foliage produces tall robust silver coloured flower stems with multiple pineapple shaped flowers in a deep steel blue. Drought tolerant once established this low maintenance plant is great for attracting bees to the garden. Long lasting flowers over late spring and summer. Fantastic cut or dried flower. Does well in poor soil conditions. Pest and rabbit resistant. Great for full sun positions, rockeries, dry and coastal positions, garden beds, borders and mass plantings. 

Seeds per gram: 800
Product code: F7-11

Quick Sowing Guide
Method Raise seedlings, or sow direct
Sowing Depth 1mm
Season Autumn
Germination 10-20 days @ 20-22°C
Hardiness / Life Cycle Hardy Perennial
Plant Spacing 40cm
Plant Height 80cm
Position Full sun, well drained soil
Days Until Maturity 200 days

*Notes: Cold stratification improves germination. Germination is irregular between 7-80 days.


We deliver Australia wide.

All orders are dispatched from our warehouse in Knoxfield, Victoria, Australia.

We do not deliver overseas.

Shipping cost is calculated using all the items in your shopping cart and your delivery postcode. The table below outlines the delivery options and costs.

Order dispatch time is currently 3-4 business days plus delivery time.
Please note we are unable to guarantee specific delivery dates or delivery timeframes, all delivery times are estimates only.


Order contains: Delivery options: Delivery cost per order
Small seed packets ONLY - Economy Delivery $3.00 or FREE on orders over $25 $5
Parcel Delivery Capped rate of $8.99
Express Delivery $15.00

BULK seed, garden supplies, tools, or accessories -

Parcel Delivery

Capped rate of $8.99

Express Delivery

Starting from $15.00
(Calculated by weight)
Live Plants - Live plants Capped rate of $10.00

*All orders sent to Western Australia are subject to mandatory inspection and fees by Quarantine WA. These fees are included in all shipping costs above.

**We will replace all orders that are lost or damaged in transit however we will not replace or refund orders simply because they were delivered later than estimated. Full details here.


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