Resin Seeds L.A. Ultra is a very potent strain and its actual lineage is shrouded in mystery. Some people say it’s a strain between L.A. Confidential and MK Ultra, but others say it could be a mutation. The actual lineage is a secret, but one thing is for sure, this plant is a heady, mostly indica strain. The flowering cycle for L.A. Ultra is fairly short at 60 days and the THC is content is around 23 percent. It can work in either indoor and outdoor gardens. L.A. Ultra yields around 100 to 250 grams per plant and around 350 grams when grown outdoors. The plants have dark green leaves and the buds are light green covered in frosty crystals and red stigmas. They’re pretty plants to look at and are fantastic to smoke. People describe the flavor as fruity with an earthy background and the high provided is energetic. We may never know who the parents of L.A. Ultra are, but at least we can still enjoy her toke by toke.