Highveld
Gauteng · parts of Mpumalanga · parts of Free State
The economic heartland of South Africa. Johannesburg, Pretoria, and Sandton sit on the Highveld plateau at 1,500–1,800m altitude. Hot wet summers with afternoon thunderstorms. June–August brings hard frosts that brown warm-season grasses.
Seasonal Highlights
Spring
Lawns recover from winter dormancy in August–September. First mow late August. Spring feed in September. Remove dead material from frost damage before feeding.
Summer
Rapid growth October–March driven by warm temperatures and Highveld thunderstorms. Weekly mowing essential. Watch for lawn grubs and fungal disease.
Autumn
April is the critical decision month — overseed with Annual Ryegrass for winter colour, or accept Kikuyu dormancy. Apply autumn fertiliser before May frosts.
Winter
Kikuyu and Cynodon go brown from June. Normal dormancy. Water minimally to keep crowns alive. Overseeded Ryegrass provides green colour through winter.
Dominant Grasses
Cities in Highveld
Frequently Asked Questions
Which cities are in the Highveld zone?
The Highveld zone includes Johannesburg, Pretoria, Sandton, Centurion.
What grasses grow best in Highveld?
Kikuyu, Cynodon, Evergreen Mix are the best choices. Hard frosts June–August that brown Kikuyu and Cynodon lawns. Homeowners must choose between overseeding with evergreen rye for winter colour or accepting winter dormancy.
What is the growing season in Highveld?
Approximately 8 months. Average rainfall 700mm. Summer highs 26°C, winter lows 4°C.
What are the biggest lawn challenges in Highveld?
Hard frosts June–August that brown Kikuyu and Cynodon lawns. Homeowners must choose between overseeding with evergreen rye for winter colour or accepting winter dormancy.
Are there water restrictions in Highveld?
Moderate — occasional restrictions during dry winters