M.25 - Very vigorous. Ideal for half and full standard trees. Heavy crops from an early age. Not resistant to woolly aphid. Approximate size of mature tree can be up to 5 metres
MM.111 - Vigorous. Produces a standard on good soils and half standard on poor soils, excellent collar rot and general disease resistance. Resistant to woolly aphid. Approximate size of mature tree can be 4 metres.
MM.106 - Semi vigorous. General purpose for most types of tree; bush, cordon and half standard. Very productive from an early age. Can succumb to collar rot or phytophora on poorly drained soils. Resistant to woolly aphid. Semi Vigorous : Approximate size of mature tree can be up to 4 metres
M.116 - Medium vigour. Although bred at East Malling Research Station some years ago this selection has only just become commercially available. Between MM106 and M26 in vigour this very productive rootstock has resistance to collar rot/phytophora, replant disease and woolly aphid. As productive as MM106 with 10% less vigour this is likely to prove to be an all round performer for many commercial (particularly cider) and amateur situations. Approximate size of mature tree can be between 3 and 4 metres
M.26 - Semi Dwarf. Requires support on most sites. Good for bush and cordons in limited spaces. Suits certain varieties well i.e Bramley and Egremont Russet. Can induce 'bare wood' in some varieties such as Cox. Susceptible to woolly aphid. Approximate size of mature trees can be up to 3 metres.
M.9 - Dwarf. Very productive and induces good fruit size. Poor anchorage needing permanent staking. Ideal for cordons and spindles. There are over 100 M9 types and together they account for the majority of commercial orchards worldwide. Approximate size of mature tree can be between 2 and 3 metres
M.27 - Very Dwarf. Produces the true mini tree, varieties reaching no more than 2 metres with little support required, excellent for the small garden. Fruit size small. Good for triploids on strong soils but will stunt diploides on poor soils. Approximate size of mature tree can be up to 2 metres
Prunus F.12.1. - Very Vigorous. The best clonal selection of mazzard for standards. Good anchorage. Approximate size of mature tree can be up to 5 metres
Colt - Semi vigorous. Fully compatible with all varieties, will contain trees to 4 - 5 metres. Considered very productive until the arrival of Gisela. Still good for bush and half standard cherries on thin soils. Semi Vigorous : Approximate size of mature tree can be up to 4 metres
Gisela 6 - Semi dwarf. 75% of Colt. All the attributes of Gisela 5 but for less than good soils. Approximate size of mature trees can be up to 3 metres.
Gisela 5 - Dwarf. 40% of Colt. Ideal for commercial orchards, gardens and patio pots. Approximate size of mature tree can be between 2 and 3 metres
Compatibility. It should be noted that there are many incompatible varieties when worked on Quince (especially Quince C). In these instances a suitable interstock should be used and Beurre Hardy, Doyenne du Comice and Old Home are suitable. The latter will also impart some resistance to Fireblight.
Pyrus communis (Seedling pear) - Very vigorous. More suitable for half standard and especially standard trees. Approximate size of mature tree can be up to 5 metres
Pyrodwarf - Medium vigour. A German selection giving something between Q.A and Pyrus communis from early observations. Probably more vigorous than claimed. Early signs are very promising due to early fruiting influence, uniformity and resistance to fireblight through its Old Home parentage. Approximate size of mature tree can be between 3 and 4 metres
Quince 'A' - Semi Dwarf. The ideal root stock for bush trees. Approximate size of mature trees can be up to 3 metres.
Quince EMH - Dwarf. Released in from East Malling in 2002 this is close to Q.C in size but imparting better fruit size but cropping no earlier. Approximate size of mature tree can be between 2 and 3 metres
Quince 'C' - Dwarf and slightly earlier into cropping. Approximate size of mature tree can be between 2 and 3 metres
Plums, Gages, Damsons & Mirabelles
Brompton - Vigorous, very suitable for standards, does not sucker and fully compatible with all varieties unlike its predecessor such as Myroblan. Approximate size of mature tree can be 4 metres.
St. Julien 'A' - Semi vigorous. This is fully compatible with all plums, damsons, gages, peaches, nectarines and apricots and many ornamental prunus species. Good yield influence. Not suitable for poorly drained soils. Semi Vigorous : Approximate size of mature tree can be up to 4 metres
Jaspi ® - A French stock, untested as yet but with St Julien 'A' vigour and good resistance to root aphixiation in wet situations.
Plumina ® (Ferlenain). - A French selection with similar tree size to Pixy but improved fruit size. Grows strongly in the first few years and then settles quickly into regular cropping. Some suckers.
Pixy - Dwarf and ideal for size containment in the garden. On very strong soils it still has commercial use for strong growing shy cropping varieties such as Marjories, Avalon and Excalibur. Not recommended for Victoria. Approximate size of mature tree can be between 2 and 3 metres.
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