@Gidorah if you germinate indoors you can start earlier, of course, even in mid March. You have a nice long growing season in SoCal. If you do germinate indoors, take care to give the plants light only about as long as the daylight is outside, or else the plants can go into flowering in May when you put them out. For example, if you give light 18/6 for their first 6 weeks then plant them outside when the day length is only 14 hours, they'll flower. They'll eventually re-veg, but this might be a source of stress. In 2020 I grew in the San Joaquin Valley in California, about 300 miles to your north, on my balcony. I sprayed neem oil to keep the whiteflies away (in July they settle on the highest buds and lay their eggs). As you walk through your garden, shake or touch the mainstem and you may see them flutter. They are the worst, because the caterpillars form inside the bud and destroy it from within.
Needless to say, my Acapulco Gold was not topped at all. Topless, au naturel as you say,
I let her get as tall as she could in 15 gallons of super soil. She was germinated indoors on March 13, left outside at night beginning in late April, grew to about 8 feet tall, and harvested late September. Will you grow your plants in pots or plant them straight into the Earth? You'll get a tree!