Unique Seedling Rootstocks
Rootstock has profound effects on traits such as yield and tree size in various horticultural industries.
Our macadamia trees are produced as varieties grafted onto N2, H2, 695 (Beaumont) seedling rootstocks.
N2 is precocious and has excellent adaptability to regional conditions. H2 and 695 are currently the most common rootstock cultivars globally, based on tree growth rate as well as kernel recovery, canopy width, canopy efficiency, (yield per unit canopy area), Phytophthora resistance attributes.
The H2 Hinde variety (Macadamia integrifolia) is the dominant macadamia rootstock kept by Australian nurseries. It is estimated that 90% of all grafted Australian commercial trees stem from H2.
Depending on farming conditions and in a continued effort to achieve greater macadamia tree vigour and uniformity as well as selecting for dwarfing characteristics we also graft varieties onto clonal 695 rootstocks and produce excellent 695, N2, A4, 814, 816 Rooted Clonal Cuttings.
Mother-Blocks & Cultivars
RedSun grafts all popular macadamia varieties onto carefully selected rootstocks suited to client’s conditions.
Varieties and rootstock selections taken directly from our certified mother blocks are planned with clients to ensure accurate rootstock allocations are available and a grafting program is developed to achieve each client’s planting program and variety mix.
Our on-site cultivar mother blocks and the Merensky Trust cultivar mother blocks established by Sapekoe (SAMAC) in Tzaneen in the 1990’s are audited and accredited and provide fully traceable scion material.
We are accredited to propagate CitroGold A268, A203 selections.
For our international growers planting across Africa where logistics is a challenge but obtaining the best genetic material is essential, RedSun has successfully innovated micro macadamia tree production.
Both 695 rooted clonal cuttings and varieties grafted onto clonal rootstocks are available to our growers with grow on facilities requiring only 6 months before field planting. RedSun provides technical management support on site to ensure quality trees go to field.
Global Gap Accredited since 2019 | SAMAC first accredited in 2014 | SGASA first accredited in 2017
RedSun Hortitech: SGASA Accredited tree nursery based in Tzaneen, Limpopo. Distributing quality Macadamia and Avocado Trees nationally & internationally.
Quality | Reliability | Integrity
Get In Touch
GV81 Pusela, Georges Valley Road (R528), Tzaneen, 0850, SOUTH AFRICA
+27 (0)64 957 2171
07H00 – 16H00 (Mon – Fri)