DR KEITH HAMMETT
QSM, BSc (Hons), PhD
PLANT BREEDER

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PHONE: +64 9 833 9453
MOBILE: +64 0210 227 4251

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All Seeds

All Highly Scented Cultivars

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Beeline Dahlia Seed
$6.00
Beeline Dahlia Seed  

Bring your garden alive with bees and butterflies! Single flowers, mainly shades of red and yellow. Mostly green foliage but different shaped leaves. Compact plants that do not need support. Sow seed in the Spring, will flower within three months from sowing and will continue until the Autumn. Plants produce tubers that can last for many years.

Beeline II Dahlia Seed
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$6.00
Beeline II Dahlia Seed  

Our original 'Beeline Seed' has proved popular. This series is different as it is based on 'Dark Destiny', a cultivar resulting from a cross between a dwarf hybrid garden dahlia and Dahlia sherffii, a species not previously used in Dahlia breeding. Unlike Beeline I, the colours are more restrained and much of their beauty lies in light being transmitted through the ray florets (petals) to give a stained glass window effect. Compact self supporting plants with finely divided foliage.

Blue Wonder
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$6.00
Blue Wonder  

'Blue Wonder' Not my raising, but possibly the nearest to blue Sweet Pea cultivar. Spring flowering. Approximately 25 seed per packet.

Candyfloss
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$6.00
Candyfloss  

It took over a quarter of a century to produce the first named reverse bicolour cultivar, where the wing petals are darker than the standard petal. 'Erewhon', which has the greatest contrast of colour, is on the blue side of the colour spectrum. 'Maloy' was the first reverse bicolour on the red side of the spectrum. 'Candyfloss' has a paler standard and as the name suggests, is evocative of that confection. Summer flowering, with long stems which bear five or more flowers. Approx. 25 seeds per packet.


Clivia miniata 'Hirao'
$6.00
Clivia miniata 'Hirao'  

SOLD OUT This form of green Clivia was originally bred in Japan by Toshio Koike and named after consumate plantsman Dr. Shuichi Hirao following his death. Although the name Hirao applies strictly to a single clone, the name tends to be used generically for this flower colour. Seed is very limited and will initially be offered only within New Zealand. Grow in light shade and protect from frost. $6 per seed, minimum order of three seed.

Coquette
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$6.00
Coquette  

'Coquette' A warm coral pink, spring flowering cultivar that was most likely introduced in 1941, and has been constantly reselected in Japan. It has good stems and is well liked by florists. Sow May to September.

25 seeds per packet. Store in fridge or freezer.


Dahlia 'Sunflowers'
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$6.00
Dahlia 'Sunflowers'  

Fed up with nothing but dwarf plants from the garden centre? Try these! 'Sunflower' Dahlia Seed: Tall growing, over 5 ft (152cm). Flowers in a range of colours, twice as large as regular single flowered dahlias (white-flowered Mystic in photo for comparison), both dark and green leaved plants. Even the odd jumbo sized collerette, maybe? Unlike sunflowers, these produce tubers, and you can name and keep your favourite selection for many years. Sow in Spring. 

Enigma
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$6.00
Enigma   scented icon

SOLD OUT 'Enigma' Offered for its strong unique scent. The name reflects both questions regarding parentage and breeding behaviour. Medium size flowers with intriguing pink marking. Approximately 25 seeds per packet.

Erewhon
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$6.00
Erewhon  

It took me 30 years to develop reverse bicolour Sweet Peas, where the standard petal is paler than the wing petals. 'Erewhon' demonstrates the greatest contrast. The wing petals could be more elegant, which caused an exhibitor to say that 'Erewhon' reminded him of "a bat flying out of a sunset".

Frilly Milly
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$6.00
Frilly Milly  

SOLD OUT 'Frilly Milly' As the name suggests, Milly is indeed frilly. This is her main attribute. The first "Spencer" Sweet Peas caused a sensation because their petals were waved in comparison with what had gone before, but nowhere near to this extent. 'Frilly Milly' has blooms that are pink flush over a cream ground and she is Spring flowering. Her main vice is that she is shy to produce seed and it may well be that it will not be viable to offer her on an ongoing basis. However, a keen gardener might like her and be able to save enough seed each season to have his or her exclusive stock? Approximately 25 seeds per packet. 

 

 

Home Fires
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$6.00
Home Fires  

'Home Fires' A two-tone segregating mixture of large crimson and scarlet blooms arising from 'Lipstick'. The tonality of segregating mixtures is superior to formulated mixtures of named cultivars. Four to five flowers on strong stems. Approx. 25 seeds per packet.

Hybrid Tree Dahlia Seed
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$6.00
Hybrid Tree Dahlia Seed  

SOLD OUT Dahlia imperialis is the best-known Tree Dahlia in Northern New Zealand. It can grow to 3 or more metres in height and flowers briefly in May, usually coinciding with strong equinoxal winds. Its’ hollow stems frequently succumb. The most commonly seen form has large pendulous “pocket handkerchief” flowers. There is a double flowered white form as well as a single flowered white. The origin of both the pocket handkerchief form and double white remain a mystery. Accessions of D. imperialis from the wild have more normal, circular single blooms. 

For over a century people have tried to cross D. imperialis with the hybrid garden Dahlia, D. variabilis in order to widen the colour range, to no avail. Two decades ago Dr Melanie Gatt undertook a PhD study looking at the cytogenetics of the genus Dahlia.

There are other species of Dahlia that have perennial aerial parts that are not hollow and become woody. D. tenuicaulis and D. apiculata have been introduced into New Zealand and these were available to Melanie. By determining the chromosome number of various accessions, she was able to achieve combinations between the various Tree Dahlia species and more importantly D. coccinea, one of the two species that gave rise to the modern hybrid garden Dahlia. As a result, a whole series of Tree Dahlias were created with a range of flower colours and shapes. ‘Timothy Hammett’ named after my late older son, is in my estimation the very best. It produces truly massive woody stems and flowers throughout much of the year.

I have done my best to maintain this genetic material, but the brutal truth is that plants are safest when in commercial production and Tree Dahlias simply do not fit the current supermarket model of the retail garden trade. Equally we are not a production nursery, we are breeders and one needs to be properly geared up to supply plants by mail order. For this reason, we have decided to offer seed in the hope that enough kindred spirits will help to keep this germplasm alive. To check viability of the seed, which is slender in comparison with that of the garden dahlia, we germinated seed last season and planted out the resultant plants. They were planted fairly late so didn’t reach their full stature, but demonstrated wide variability in plant habit and flower form and colour.

I have again lost ‘Orchid’ that everyone seems to want but there were individuals in the population, which resembled it in both shape and colour, plus others of interesting colour on the red/yellow side of the spectrum. Because of the hybrid nature of the seed from open-pollination and the hybrid nature of the parents, there is little point in offering seed from specific selections; better to offer a mixture.

Plant breeding, however scientific, is a lottery. Every seed will not produce a winner but I am sure there will be gems amongst this seed and between us we can preserve and develop Melanie’s work of two decades ago.

WINTER FLOWERING SWEET PEAS

Although the original, wild Sweet Pea, Lathyrus odoratus, from which all Sweet Peas have been derived was summer flowering, strains have been developed that are able to flower at different times of the year. This is controlled by the length of daylight hours, which varies both by season and geographic location. As a rule of thumb, Summer Flowering strains require 12 hours daylight to initiate flowering, Spring Flowering strains require 11 hours, while Winter Flowering strains require only 10 hours.

SPRING & SUMMER FLOWERING SWEET PEAS

Spring Flowering types are best sown in the autumn while Summer Flowering types are best sown from mid winter in areas with mild winters like those experienced in Northern New Zealand. Spring and Summer types produce more sturdy plants, which produce strong basal shoots that soon take over from the primary shoot. Notwithstanding both the Winter and Spring strains perform very well if sown at the same time as the Summer types.

Scented SWEET PEAS

Scent is a difficult characteristic to breed. Expression of scent is very much dependant on temperature and humidity, while different people have differing ability to detect scent. Notwithstanding, Keith's work in combining the colours of the ancestral cultivars with bigger flowers and longer stems has also resulted in strongly perfumed cultivars. His 'High Scent' is recognised as the world benchmark for scent. This has smaller flowers with a clamped keel, but new introduction 'High Society' combines a waved, crisp white ground picotee edged pink flower with strong scent.

NO SOAKING REQUIRED

Very frequently, home gardeners are advised to soak seed overnight before sowing. This is unnecessary and potentially harmful for any hand harvested seed obtained from this website. Because of harvesting methods, seed from field production can on occasion result in hard seed coats, which delays or prevents germination. This is why the idea that seed needs to be soaked to identify hard seed has arisen.

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