A great genus close to the sunflowers that, although often very tall, produce a very compact rootstock and are best displayed among low-growing plants.
Silphium terebinthinaceum
This and S.laciniatum produce among the biggest, most luxuriant leaves of any hardy border perennial.
In this case they are huge and heart-shaped (like a Colocasia or Anthurium?) to 12ins across.
The flower stem is more slender and smooth than laciniatum.
sold out
Silphium terebinthinaceum
This and S.laciniatum produce among the biggest, most luxuriant leaves of any hardy border perennial.
In this case they are huge and heart-shaped (like a Colocasia or Anthurium?) to 12ins across.
The flower stem is more slender and smooth than laciniatum.
sold out
Silphium simpsonii
A smaller species with simple green leaves and golden flowers
£8
Silphium laciniatum
Leaves to 2ft long and impressively lobed, like some huge tropical fern. The stiff bristly upright flower stem is a bonus.
Easy in any fertile, retentive soil, and best at the front of the border where its stature can be appreciated. Perfect for prairie-style plantings.
Leaves to 2ft long and impressively lobed, like some huge tropical fern. The stiff bristly upright flower stem is a bonus.
Easy in any fertile, retentive soil, and best at the front of the border where its stature can be appreciated. Perfect for prairie-style plantings.
sold out
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