Broccoli 'Waltham'

Try to plant in a location that enjoys partial sun and remember to water moderately. Waltham is generally regarded as a tender plant, so remember to wait until your soil is warm and the night time temperature is well above freezing before moving outside. Waltham needs a loamy and sandy soil with a ph of 6.2 to 7.2 (weakly acidic soil to weakly alkaline soil).

Try to aim for a seed spacing of at least 5.85 inches (15.0 cm) and sow at a depth of around 0.51 inches (1.3 cm). For optimal germination, soil temperature should be a minimum of 10°C / 50°F.

By our calculations, you should look at sowing Waltham about 42 days before your last frost date.

Waltham is tender, so ensure you wait until all danger of frost has passed in your area before considering planting outside.

Bred by the University of Massachusetts, Waltham Field Station, Waltham, MA around 1950.
It was named after the town Waltham, Massachusetts which was settled in 1636.