Growing Tips: Brussels Sprouts grow best in rich well-worked ground that has a soil pH above 6.0. This easy-to-gorw crop may be started indoors 4-6 weeks prior to setting out or sown directly in the garden. Brussels Sprouts require copious amounts of water and should be mulched during the hot summer months to conserve soil moisture. Allow a light frost before harvesting to improve flavour and pick sprouts from bottom of stem up.