How to grow Rugosa rose 'Robusta'
Plant in a location that enjoys full sun and remember to water moderately. Robusta is generally regarded as a hardy plant, so this plant will survive close to or on freezing temperatures. Robusta needs a soil ph of 5.6 to 7.5 (weakly acidic soil - weakly alkaline soil).
Growing Robusta from seed
Try to ensure a gap of at least 7.90 feet (2.43 metres) when sowing to prevent overcrowding your seedlings.
Transplanting Robusta
Robusta is hardy, so ensure you wait until all danger of frost has passed in your area before considering planting outside.
Harvesting Robusta
This variety tends to mature and be ready for harvest in early autumn.