You can plant the entire pot in the ground, and this doesn't disturb the roots. Growing 1 to 4 feet tall, the leaves of lupine … While each lupine species will be a bit different, in general it’s best to grow lupines directly from seed. and 1-gal. I can… Half way only by the look of it. Lupine transplants sometimes come in plantable peat pots. If growing in quarts, start with a 72-ct plug in spring and allow 6 to 8 weeks for plants to bulk up before sale. Depending on your climate, fall and winter can be a great time to sow lupine … Perhaps you’ve seen photos of one of the most famous lupines, the Texas Bluebonnet, which carpets fields and road sides every April, drawing many nature lovers. Growing lupines in a pot on a balcony. 96. I can't believe how big these flowers get! Lupines are commonly sold in both 1-qt. 21 days ago. Transplant lupines when the seedlings are 4 to 6 weeks old. Close. Plus, you can easily save seeds from lupines you grow or find growing in the wild! Posted by. Growing lupines in a pot on a balcony. Balcony gardener. Soil: Lupines prefer cool, moist, slightly acidic soil with good drainage.Till to a depth of eight to 12 inches … If growing in gallons, you … Location: Lupines prefer full sun for 6 to 8 hours a day, but will grow in partially shades areas. pots at retail.