Wayside Aquatics

Aquatic Centre and Water Garden Nursery

 
 

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Marginal Plants

 
 

All of the marginal plants I sell are young, vigorous specimens, specially cultivated here in the nursery.

 

Aponogeton distachyus (Vanilla-scented water hawthorn)

Available Summer

   
One of the best deep-water aquatics, second only to the water lilies. It has long strap-like green floating leaves that are often blotched with brown when young. The white flowers are borne just out of the water and have an incredibly powerful vanilla scent. Unlike most aquatic plants this is at its best from late summer to spring - it often dies back in summer but will flower right through the winter in mild years. This makes it a very useful plant for providing all year interest when other species are dormant. Also, unlike many water lilies, it grows well in shade.

 
  • Approximate leaf spread: 60-90cm (24-39 inches)
  • Recommended water depth over pot: 30-90cm (12-39inches)

Calla palustris (Water Arum)

£4.00

   
This member of the Aroid family has heart-shaped glossy dark-green leaves and white arum-like flowers in May/June, followed by bright red berries in autumn. Expanding with creeping rhizomes, it thrives in shallow water.

 
  • Approximate height: 23cm (9 inches)
  • Recommended water depth over pot: 5-15cm (2-6 inches)

Caltha spp.  (Marsh Marigolds or Kingcups)
   
Some of the first marginals to flower in early spring, these plants produce an abundance of shining yellow or white buttercup flowers, above mounds of heart-shaped green leaves. An absolute must for giving spring colour to the margins of your pond. Often producing a second crop of flowers in autumn.
 

Caltha natans (Floating Marsh Marigold)

£4.00

   
This rare plant, originating from Siberia, is unique amongst Calthas because it has floating leaves. Small pink-tinged white flowers are produced above the green leaflets in summer. A very hardy cover plant for small ponds or tubs.

 
  • Approximate height: none (has floating leaves)
  • Recommended water depth over pot: 5-15cm (2-6 inches)

Caltha palustris 'Flore Pleno' (Double Marsh Marigold)

£4.00

   
Ideal for the average pond, producing masses of pompom-like bright yellow double flowers in early spring and neat mounds of shiny green heart-shaped leaves. Very ornamental.

 
  • Approximate height: 30cm (12 inches)
  • Recommended water depth over pot: 0-10cm (0-4 inches)

Caltha palustris var. monstrosa 'Plena' (Lemon Double Marsh Marigold)

£5.00

   
A rare Caltha variety which is seldom available.  This is a particularly useful plant for extending the spring flowering period because it flowers several weeks later than the common double Caltha 'Flore Pleno'. Blooms are also of a more fluffy appearance and a subtle lemon yellow.

 
  • Approximate height:  30cm (12 inches)
  • Recommended water depth over pot: 0-10cm (0-4 inches)

Caltha palustris palustris (Polypetala) (Giant Marsh Marigold)

£4.00

   
This much bigger variety forms large mounds of twelve-inch round leaves headed in spring by sprays of two-inch buttercup-yellow flowers. A great plant for naturalising in the banks of large ponds.

 
  • Approximate height: 90cm (3 feet)
  • Recommended water depth over pot: 0-20cm (0-8 inches)

Caltha palustris 'Honeydew'

£5.00

   
Something of a new colour for Calthas. This unusual variety produces lovely soft primrose yellow flowers in early spring.

 
  • Approximate height: 45cm (18 inches)
  • Recommended water depth over pot: 0-15cm (0-6 inches)

 


Cyperus alternifolia (involucratus) (Umbrella Grass)

£5.00

   
This excellent specimen plant will grace any pond with its tall, sturdy stems crowned with attractive sprays of umbrella-like leaves and delicate feathery seeds. By far the best in its family.

 
  • Approximate height: 75-90cm (30-36 inches)
  • Recommended water depth over pot: 10-20cm (4-8 inches)

Menyanthes trifoliata (Bog Bean)

Available Summer

   
A useful plant for disguising the pond edge, having long branching stems which float on the water surface. These bear green three-lobed leaves and attractive white-fringed flowers in May and June.

 
  • Approximate height: 30cm (12 inches)
  • Recommended water depth over pot: 0-10cm (0-4 inches)

 


Peltandra sagittifolia (Arrow Arum)

£6.00

   
Grown mostly for its foliage, this plant forms nice clumps of glossy arrow-shaped leaves with green arum-like blooms in summer.

 
  • Approximate height: 60cm (24 inches)
 
  • Recommended water depth over pot: 0-15cm (0-6 inches)

Peltandra sagittifolia 'Yellow Vein' (Yellow-Veined Arrow Arum)

£9.00

   
This rare and rather striking form of Peltandra has unusually strong yellow veining in spring. A real plant for the connoisseur.

 
  • Approximate height: 75cm (30 inches)
  • Recommended water depth over pot: 0-20cm (0-8 inches)
 

Pontederia (Pickerel Plants)  
   
Some of the most popular and attractive marginals - particularly useful plants for bringing late summer colour in the pond.
   

Pontederia cordata (Pickerel Plant)

Available Summer

   
Forms attractive clumps of lush shiny green leaves, topped with blue flower spikes in late summer and autumn.

 
  • Approximate height: 50cm (20 inches)
  • Recommended water depth over pot: 8-15cm (3-6 inches)

Pontederia cordata var. dilitata (Giant Pickerel Plant)

Available Summer

   
This magnificent plant is the giant of the family, fantastic for the larger pond. Flowers are a softer blue than the species and produced in great quantity in late summer.

 
  • Approximate height: 150cmcm (60 inches)
  • Recommended water depth over pot: 8-30cm (3-12 inches)

Pontederia cordata albiflora(White Pickerel Plant)

Available Summer

   
A rarely-seen form of Pontederia with white flower spikes.

 
  • Approximate height: 50cm (20 inches)
  • Recommended water depth over pot: 8-15cm (3-6 inches)

Pontederia cordata var. lancifolia (Slender Pickerel Plant)

Available Summer

   
Similar to cordata, except taller and more upright, with soft blue flower spikes in late summer and autumn.

 
  • Approximate height: 90cm (3 feet)
  • Recommended water depth over pot: 8-15cm (3-6 inches)

Thalia dealbata (Hardy Water Canna)

Available Summer

   
This large, handsome marginal is best planted with at least 15cm (6 inches) of water over the crown to protect from frost. Alternatively, it can be brought into a frost-free greenhouse or conservatory for the winter. Has typical blue-green Canna leaves and produces violet flowers on tall stems in summer. 

 
  • Approximate height: 1.5m (5 feet)
  • Recommended water depth over pot: 15-30cm (6-12 inches)

Zantedeschia 'Spotted leaf '

Available Summer

   
The leaves of this variety are covered with translucent flecks while the flower spathes are green with a white throat.

 
  • Approximate height: 75cm (30inches)
  • Recommended water depth over pot: 15-20cm (6-8 inches)

 

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