Daver
PMA Member
I have planted brassicas in mid-September more than a couple of times with decent success. But, if you end up getting them in that late, you don't have enough time for giant bulbs to grow. But...you can end up with some below ground "fruit", it will just be smaller. Related to turnips...think golf ball sized bulbs, not softball sized. Related to radishes...think 4"ish tubes, not 10"-12".We have a chance of rain for tonight, but then the forecast looks dry and hot again for the next week. How late is too late to plant brassicas?
I also will switch my mix to be heavier on radishes and lighter on turnips if I am "late"...so you can still end up with a good amount of above ground forage if they go in late, or don't get any rain on them for weeks, you will just get less below ground mass, but still well worth it IMO.
Opinions vary on the target planting date for brassicas, but I have kind of ended up as a "Aug. 10'ish" guy myself. (Exception being rutabagas, a brassica family that has a much longer growing window, those need to go in late June June to early July IMO.) I personally would not consider anything prior to Aug. 15th as "late" on the regular brassica.
Having said all that...rain, rain, rain is the key. A "late" planted field with sufficient rain will make a "bad" plotter look great. An "early" planted field with no rain will make a "good" plotter look bad.