Cultivar; Ruby Star 

Clone Number; PC 442                                                                  

Origin; ARC Infruitec, 2009

Royalties/ Levies; ZAR 7.88 Production royalty: R0.47/kg fruit

Yield; excellent, 25 kg/tree

Fruit use; fresh

Type; semi-free stone

Shelf-life; good at duel temperature for 42 days. Shrivel sheet recommended

Water requirements; water to a depth of 609mm every 14-21 days 

Sun requirements; 6 to 8 hours per day

Chill hours; 400 to 600

Pruning; prune in early spring or summer on a dry day to prevent water-borne pathogens from infecting your trees. Prune only when absolutely necessary- such as to remove dead branches, diseased sections and to shape the tree in it's initial years. Apply a pruning paint to help seal the cut.

soil requirements; a well-draining soil type with a pH of 6 to 7 is best. Sandy or clay soils must be avoided at all costs.

Soil depth; at least 600mm is recommended

Fertiliser requirements; be careful not to over fertilise young trees. Plums less than 3 years old should be given minimal fertiliser. Trees older than 3 years can be given fertiliser after bud break. 10-10-10 fertilisers and zinc foliar sprays are best.

Pollination requirements; like most plums, it needs a pollinator

Successful test-crosses; Sun breeze, possibly self-fertile?

Bloom time; September

Harvest time; February 

Vigor; strong

Size and shape; spreading

Tree age;  will start fruiting around year 3 to 5.

Average life span;  plums have a short life span in colder regions, but generally live for 15- 25 productive years depending on the rootstock used.

Susceptibility to pests and diseases; normal

General notes; late flowering plum with good fruit set, may require thinning.

P.O Box 138,

Montagu, South Africa

6720

Proud producers of quality rootstocks and scions for peach, pear, almond, nectarine, plum, plumcot, quince, pomegranate, fig, apricot and prune trees.

©JD VAN DEVENTER'S KWEKERY  Established in 1978.