Sep 152016
 
Weigela coraeensis var. fragrans
Weigela coraeensis var. fragrans 20140440 KRG 753 (10a

Weigela coraeensis var. fragrans

During the first growing season a newly planted shrub will establish; needing light, water and nutrient. Subsequent seasons will see good growth and the plant thriving. This newly planted Weigela coraeensis var. fragrans has sent out a dominant, vigorous shoot from the base of the plant. Left to its own devices it may suffer damage in a winter storm. To prevent this, use formative pruning techniques; head back the dominant stem by two thirds of its length and shorten each of the side shoots to two buds. While there nip out the developing seed pods on the older growth, the plant does not need to put energy into developing a future generation. This will help to form a denser growing shrub and allow the production of more flowering shoots when growth commences in the spring of 2017. Compost the arising’s, adding to your compost heap means more organic matter that can be returned to the soil in the future.

Weigela coraeensis var. fragrans

Weigela coraeensis var. fragrans

 

 

Sep 142016
 

Two South American Labiates that are set to brighten the borders for autumn are the sturdy and felty Salvia corrugata and the more spindly S. meyeri. Both with whorls of blue flowers making ideal pollinator plants attracting a wealth of insects to their inflorescence. Easily propagated by taking cuttings of semi ripe growth allowing rooting before overwintering in a protected environment.

Salvia meyeri

Salvia meyeri

Salvia meyeri 20030732B (3a

Salvia corrugata

Salvia corrugata

Salvia corrugata 20040344C (12a

Sep 082016
 

Impatiens tinctoria; from tropical east Africa to the glasshouse border and growing a stately three metres tall. The tall succulent or watery stems are sent up annually from the perennial rootstock. At this time of year the flowers are spectacular with a long spur tailing back from the white petal. The anther is heavily laden with pollen and resembles a rectangular scrubbing brush. On top of this are two delicate curled stigma. There is much to commend the flower both visually and botanically. The upper petal hooded, the lower with speckled pink markings. With a frost the dieback is rapid due to the high water content of the plant. The rootstock requires a sheltered site to successfully overwinter. Heaping with compost also helps.

Impatiens tinctoria

Impatiens tinctoria

Impatiens tinctoria

Impatiens tinctoria

Aug 312016
 
Fuchsia magellanica seedling
Fuchsia magellanica seedling

Fuchsia magellanica seedling

Fuchsia magellanica produces sweet, juicy fruits containing multiple seed. These are often dispersed by birds that are partial to the fruit. From subsequent droppings chance seedlings are occasionally seen in cultivated areas, more so in the warmer and wetter west coast gardens. This seedling in the attached image is growing from the mortar joint in the brick base of a nursery glasshouse. It probably arose from a bird having wiped its beak on the corner of the wall before taking a drink in the gutter. A healthy plant obtaining nutrients and moisture from the brickwork and its joints.

 

Aug 232016
 

Trochodendron aralioides is an evergreen tree with branches in a layered structure. The leaves are highly glabrous and with the summer sun high in the sky are reflecting the light from their surface to almost mirror like quality. Other characteristics include a long petiole and a partially serrated edge leading to a distinctive drip tip. Native to Japan, Taiwan and South Korea where it reaches 20m in height. Grows well in a dry shady situation. Some literature cites it as epiphytic on Cryptomeria trunks in its native environment.

Trochodendron aralioides

Trochodendron aralioides

Trochodendron aralioides

Trochodendron aralioides

Aug 162016
 

The good sized stems on this Allium wallichianum make it a worthwhile addition to the late summer border. At this time of year foliage has reached maximum height and luxuriance so any bulbs need to be of a certain stature to send the flower into the light. Rounded heads of purple with prominent blue anthers loved by pollinating insects. The attached images show flower heads at various stages of development. The papery sheath gradually shed as the head expands to open fully. Collected in China’s  Yunnan Province,  growing at 3200m, on a steep scree slope.

Allium wallichii

Allium wallichii

Allium wallichii

Allium wallichii

Aug 082016
 
Hydrangea sargentiana
Hydrangea sargentiana

Hydrangea sargentiana

Producing flower heads of dinner plate size in the copse is a young specimen of Hydrangea sargentiana. Stout stems bear the terminal corymb, flat at first and then as the head matures takes on an undulating appearance. The head is composed of many small light purple fertile flowers, all lightly scented. These individual five sectioned domes burst open and reveal seven or more protruding anther and filaments. Beneath is a split stigma/style. A spattering of larger white infertile flowers sits to the edge of the corymb. The young growth is distinguished by a covering of bristly hairs; this disappears on older wood which has an attractive light brown peeling bark. Native to Western China where it was collected by Ernest Wilson in 1908.

Hydrangea sargentiana

Hydrangea sargentiana

RBGE Living Collections Accession Factsheet
Accession Number:20120034
Scientific Name:Hydrangea sargentiana Rehder
Family:Hydrangeaceae
Genus:Hydrangea
Epithet:sargentiana
Collector:Wilson, Ernest Henry
Year:1907
Origin:Hubei, W:Hsing-shan Hsien
Elevation:1,800m
Plant:20120034C
Location:/Living Collections/Unplaced
Plant:20120034D
Location:/Living Collections/Inverleith/C21/ZZE060
Plant:20120034A
Location:/Living Collections/Benmore/YE6/835
Plant:20120034B
Location:/Living Collections/Benmore/YE6/740
Aug 022016
 
Leucojum autumnale var. oporanthum

Leucojum autumnale var. oporanthum

A show of delicate white, in a south facing bed of the rock garden, is a planting of Leucojum autumnale var. oporanthum. These tiny bulbs send up a thin stalk on which a white flower opens. Needing an open sun drenched spot to flower well, this Moroccan native is the harbinger of the autumn flowering bulbs. Several flowers to each stem, buds pointed vertically up like a biro point. The inner tip of the white petals have a crystallised appearance. Strands of light linear foliage cover the ground beneath.

Leucojum autumnale var. oporanthum

Leucojum autumnale var. oporanthum

Jul 262016
 

Baking in the heat on a raised terrace with flower spikes hitting two plus metres in height this Watsonia x longifolia is an elegant sight. It can be seen growing in the confines of the alpine area from where Elspeth promises to select a suitable planting site in the Garden and with due care and attention move the corms during the winter. Disliking disturbance it may then take a year or two to settle before annually producing tall flowering spikes of pink petalled flowers.

Watsonia x longifolia

Watsonia x longifolia

Watsonia x longifolia 19912196C Hilliard & Burtt 19130 (7a

Jul 112016
 
Helichrysum aucheri

Helichrysum aucheri

Helichrysum aucheri is in flower on the scree. Papery flower heads on 150mm stems. Collected in Turkey but native to greater Arabia. Grown in well drained soil and loving direct baking hot sun thus ensuring regular flowering. The silvery sheen on the foliage is sadly not at its best this year due to the continual torrential downpours we have experienced.

RBGE Living Collections Accession Factsheet
Accession Number:20000206
Scientific Name:Helichrysum aucheri Boiss
Family:Compositae
Genus:Helichrysum
Epithet:aucheri
Origin:Kasamonu, Ilgaz Dag pass
Elevation:1,800m
Plant:20000206D
Location:/Living Collections/Inverleith/R23/ZZZY10
Plant:20000206E
Location:/Living Collections/Inverleith/Q26
Plant:20000206B
Location:/Living Collections/Unplaced
Plant:20000206C
Location:/Living Collections/Inverleith/Q27
Plant:20000206A
Location:/Living Collections/Inverleith/Q04/1