FLORAL FRIDAY FOTOS: November 2021

Thursday, 25 November 2021

FFF520 - SALVIA

Salvia sinaloensis ‘Aztec Blue’ in the family Lamiaceae is a native of Mexico and originates in the country's province of Sinaloa. It is a delightful little plant which will grow and spread slowly via underground runners to form an attractive ground cover which is non-invasive.

The exceptional flower colour of this variety of salvia needs to be seen to be believed. The intense and vibrant blue is as close to a true blue that you will ever find in the plant kingdom. Its charm does not end there, however, as the foliage too offers ornamental value to the garden designer. As young leaves emerge they a delightful plum colour slowly changing to an olive green as they age but always retaining a bronze tinge providing the plant is in full sun. When planted in light shade greener foliage results.

For best results, flowering and foliage colour, choose a sunny site in free draining soil. A herbaceous perennial in cooler climates but generally foliage will remain year round and can be trimmed by half during winter months. An application of slow release fertiliser in spring is recommended. Removing spent flower stems will encourage further flowering.

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Thursday, 18 November 2021

FFF519 - JACOBINIA

A member of the Acanthaceae family, the Brazilian plume flower or jacobinia (Justicia carnea) is a shade-loving, soft-wooded shrub (ht 1.5m) with large, lush leaves. Thick plumes of white, pale pink or deep pink tubular flowers appear in regular flushes from early summer to late autumn. A form with dark purplish underleaves is known as 'Radiant' - perhaps more correctly should be called 'Huntington Form'.

Justicia carnea needs hard pruning in late winter, and regular dead-heading during summer will help to promote new blooms. It will also flourish in sunny spots but is useful for shaded sites, as are so many of the Acanthaceae family, which do so well in temperate climates. Whilst it will stand neglect, it responds well to feeding and watering. It is easily propagated from cuttings. It is a good companion to hydrangeas, Plectranthus species, ferns and camellias. The white form looks pretty with silver-leaved companions, such as Plectranthus argentatus and Pilea cadierei.

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Thursday, 11 November 2021

FFF518 - SCHLUMBERGERA

Schlumbergera is a small genus of cacti with six species found in the coastal mountains of south-eastern Brazil. Plants grow on trees or rocks in habitats which are generally shady with high humidity and can be quite different in appearance from their desert-dwelling cousins.

Most species of Schlumbergera have stems which resemble leaf-like pads joined one to the other and flowers which appear from areoles at the joints and tips of the stems. Two species have cylindrical stems more similar to other cacti. In Brazil, the genus is referred to as Flor de Maio (May flower), reflecting the period in which they flower in the Southern Hemisphere. It is also called Easter cactus.

Thursday, 4 November 2021

FFF517 - ISOPOGON

Isopogon formosus or Rose Cone Flower is a shrub in the Proteaceae family that is endemic to areas near Albany and Esperance in Western Australia. In occurs naturally in heathland and woodland areas. It has an erect or bushy form and is usually between 1.5 and 2 metres high. The pink flowers appear from mid winter to early summer. Rounded "drumsticks" containing the seeds appear later, formed from the old flower parts. The plant's leaves are divided, narrow, terete and about 5 cm long.

Isopogon formosus prefers full sun to partial shade in a well-drained sandy or gravelly soil. In the Australian National Botanic Gardens (ANBG) in Canberra they use a special mix of 2:1 sand and granite. It will tolerate light or moderate frosts but will not tolerate heavy frosts or extended periods of dryness. It can be propagated by either seed or cutting. The ANBG have had more success with cuttings than seed. When taking cuttings use older material, not that from the soft tips. A rooting hormone such as IBA should be used to promote root growth.

Isopogon formosus responds well to light pruning which improves the shape. Tip pruning from an early stage promotes lateral growth, however it must not be over-pruned. It does not suffer from any particular pest but is susceptible to the root rot fungus Phytophthora cinnamoni. You should also only use a slow release fertiliser or one that is suitable for Australian natives as this Isopogon is particularly sensitive to soluble phosphorus.

It is difficult to cultivate this plant in the eastern states, as it will not tolerate humidity and is less hardy than some of the naturally occurring eastern species. A possible alternate way for it to be grown is to grow it in a pot as the particular conditions it requires can be satisfied readily and be more easily monitored. It is well worth attempting to grow, as it is a spectacular plant that can be used as a feature in the garden all year round.

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