Brussels sprouts that are stunted in a flat (as seedlings) may very well be stunted as they mature. Stunting also results from drought, weed competition, disease (such as fulsarium wilt; are leaves yellowing?) and/or insect damage. Also, these plants thrive best in cooler temps. Summer conditions may contribute to stunting their growth. We hope this helps!
Brussels sprouts that are stunted in a flat (as seedlings) may very well be stunted as they mature. Stunting also results from drought, weed competition, disease (such as fulsarium wilt; are leaves yellowing?) and/or insect damage. Also, these plants thrive best in cooler temps. Summer conditions may contribute to stunting their growth. We hope this helps!