This is my first year at a garden and I have some bloomsdale spinach I planted mid-May and had a nice harvest about 3 weeks ago: lots of leaves big and small, very bushy, tasted delicious. The plants were about 2.5 ft. tall and I left any leaves shorter than 3 inches.
Then, what seemed like over night, the plants took off. They are now 4.5 ft. tall will lots of branches which are quickly becoming too long to support themselves. These branches are breaking at the stem and the plant is not producing like it did just weeks ago. The first growth spurt resulted in a nice vertical stem with lots of leaves close to the main stem. Now the plant has grown both taller and wider with these long stems which cannot support themselves and very small leaves. How should I correct this?