Read MoreIf you do have any moisture, then it is an ideal time to plant some brassicas for late summer and fall use. Forage type brassicas are highly productive and digestible and usually can be grazed within 75 days after seeding, sometimes earlier. Brassicas need moisture to get started and for speedy growth and good yield. Summer seeded brassicas — seeded now to August — can help supplement forages and also help extend the grazing season.