Rose Blythe Spirit

'Blythe Spirit' is a charming and graceful English rose that stands out for its light, airy character and exceptional health. It produces abundant sprays of small, cupped flowers in a soft, pure yellow that gently fades to pale lemon, creating a delicate and refreshing effect throughout the season. The blooms are lightly scented with a pleasant Musk fragrance, enhanced by a subtle hint of myrrh. Its compact, bushy growth and small, healthy foliage make it an ideal choice for mixed borders, where it blends effortlessly with other plants. Remarkably disease-resistant and free-flowering, 'Blythe Spirit' is a reliable, low-maintenance rose that brings continuous softness and elegance to the garden.

DESCRIPTION OF THE VARIETY

The English Shrub rose 'Blythe Spirit', occupies a unique niche within the David Austin "English Rose" collection. Introduced at the turn of the millennium, specifically in 1999 and appearing in catalogs in 2000, it emerged during a period of diversification for the Austin breeding program. David Austin’s initial success was built upon the "Old Rose" hybrids - massive, cabbage-like blooms with intense fragrance. However, by the late 1990s, the breeder sought to incorporate the elegance and "lightness" of the Musk Roses (Rosa moschata) and Noisettes into his lines. This led to the creation of the English Musk group, of which 'Blythe Spirit' is a quintessential example.

The significance of 'Blythe Spirit' lies in its departure from the dense, over-petalled forms of its predecessors. It has served as a bridge between the traditional shrub rose and the more airy, landscape-oriented varieties. In European trials and markets, it has been recognized for its vigor and healthy foliage. The impact of 'Blythe Spirit' extends to its role in the "English Musk rose" lineage, which prioritizes health, repeat flowering, and a specific Musky fragrance. This group often displays improved resistance to common fungal pathogens compared to the early Austin roses. The transition toward these traits marked a significant milestone in modern rose cultivation, as breeders globally faced increasing pressure to reduce chemical fungicide dependency. The cultivar's introduction coincided with a broader movement in horticulture towards "sustainable" gardening, where plants were expected to perform with minimal intervention.

FLOWERING

Rose 'Blythe Spirit' has a recurrent flowering habit. Blooms in flushes with short breaks from summer until frosts. The number of blooms per plant during the growing season is profuse, but there are too many to count. The repeat-flowering habit of 'Blythe Spirit' is highly reliable. The flowering stems typically contain multiple buds at different stages of development, ensuring a prolonged display during each flowering flush.

The blooms of 'Blythe Spirit' are very double, small and cupped. They are notably smaller than many other Austin cultivars, appearing in dainty sprays of small, cupped, double yellow blooms. The color is a consistent, luminous lemon-yellow. While specific RHS Colour Chart codes for the petal centers typically fall within the Yellow Group (approximately 2B to 4B), the color tends to soften toward the outer edges of the petals as the bloom matures, though it maintains its distinct lemon character better than many other yellow hybrids. The bud form is generally ovoid, opening into perfect globes before expanding into a loose, cupped form.

Fragrance:

The fragrance of 'Blythe Spirit' is light and Musk with a subtle hint of myrrh. This fragrance is a hallmark of the English Musk hybrids, inherited from the Noisette and Rosa moschata ancestry.

PLANT

The rose variety 'Blythe Spirit' is classified as a Shrub rose and is part of David Austin’s English Shrub Roses collection. It is also categorized by David Austin as English Musk rose, which is a group of roses developed by David Austin by crossing his existing English roses with the Noisette roses and hybrids of Rosa moschata. The goal was to create plants with a more "wild rose" grace, continuous flowering, and the distinctive musk scent. 'Blythe Spirit' exemplifies this by producing flowers in large clusters of smaller blooms rather than the solitary large flowers. The introduction of 'Blythe Spirit' was part of a cohort that included other notable English Musk hybrids such as 'The Lark Ascending' and 'The Pilgrim'. These varieties share a commonality in their refined foliage and a tendency toward shrubbier growth rather than the stiffly upright habit of earlier English Rose groups.

The plants of rose 'Blythe Spirit' exhibiting a bushy and spreading growth habit. The mature and well-established plants of this rose reach an ultimate height of about 100 - 150 cm (3.3 to 4.9 feet) in height and a similar spread within a growing period of two to five years. The plants of this rose have arching canes that provide a graceful, natural silhouette, making it suitable for both mixed borders and informal hedging.

The plant has a normal quantity of prickles, which are moderate in number and usually reddish-brown on new growth, maturing to a grey-brown on older canes. The cane habit is spreading, allowing the plant to cover a significant area without becoming overly dense or woody at the base.

Foliage:

The foliage of 'Blythe Spirit' is medium green in colour and healthy. There is a normal quantity of the foliage on the plants of this rose variety. The leaves are compound pinnate, the number of leaflets on normal mid-stem leaves varies from 5 to 7, including the terminal leaflet. The leaflets are ovate with serrated margins and a matte to semi-glossy finish, the type of serration is medium sized and single. In comparison to other Austin roses of the same era, the foliage of 'Blythe Spirit' is slightly smaller and more refined, matching the dainty nature of the flowers.

Disease resistance:

The rose demonstrates a robust health, particularly taking in account the English Musk group's general resistance to powdery mildew (Podosphaera pannosa). However, like many yellow roses derived from Rosa foetida ancestry in the distant lineage, susceptibility to black spot (Diplocarpon rosae) can vary by region. While generally the foliage is healthy, some records report that it may be susceptible to black spot in high-pressure humid environments.

In terms of cold hardiness, 'Blythe Spirit' is rated RHS H6, meaning it is hardy in all of UK and northern Europe, capable of surviving temperatures down to -20°C to -15°C (-4°F to 5°F). This broad temperature tolerance allows it to be grown successfully in USDA zones 5 through 10. In Mediterranean climates, the cultivar exhibits good heat tolerance, provided that moisture levels are maintained to prevent stress-induced dormancy.

While it is hardy, the dainty blooms of 'Blythe Spirit' can sometimes suffer from "flower balling", where petals stick together and fail to open in excessively damp, cool spring conditions, although its cupped form is generally more resistant to this than deeply globular varieties.

The name 'Blythe Spirit' was selected after the Noël Coward play. The name is a dual literary and musical tribute. It most directly references the 1941 comic play Blithe Spirit by Noël Coward, which features the eccentric medium Madame Arcati.

The play's title itself was taken from the opening line of Percy Bysshe Shelley's poem "To a Skylark":

"Hail to thee, blithe spirit! Bird thou never wert".

The choice of this name by David Austin likely reflects the spirituous light, and airy nature of the lemon-yellow blooms, which seem to float on the arching branches.

English Shrub Roses

ORIGIN OF THE VARIETY

Rose variety 'Auschool' / 'Blythe Spirit' originated by David Austin, but the parentage of this rose has not been fully disclosed as is common with many of their commercial introductions to protect proprietary genetic lines. However, its classification as an English Musk Hybrid provides significant clues to its genetic heritage.

USDA 5