There isn’t really. A girl may show pistils as preflowers, but you can’t count on it. You can do one of two things.
You can take cuttings. Just leave them in water. Put them under 12/12 lighting. They will show male or female within a week or two.
Or flip your garden to 12/12 lighting, then when they’ve shown you put them back under 20/4 to reveg for as long as you like.
Hope that helps.
You can take cuttings. Just leave them in water. Put them under 12/12 lighting. They will show male or female within a week or two.
Or flip your garden to 12/12 lighting, then when they’ve shown you put them back under 20/4 to reveg for as long as you like.
Hope that helps.