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The 'My Castle' red lupine cultivar boasts a captivating hue reminiscent of rich ruby reds. Its floral spikes stand tall and proud, like sentinels guarding a royal fortress. Each blossom is a vivid crimson, exuding elegance and charm.


Spikes reach 3 feet tall 


Perennial zones 4-9


Plant when temperatures are between 60-85 degrees. THESE WILL NOT GERMINATE IF TEMPERATURES ARE OVER 85 DEGREES. Germination varies quite a bit, between 15 and 75 days. The fastest way to get these to germinate is to place them in an airtight container(the baggie I send them in is perfect) place that in a paper bag and put them in your refrigerator for one week. Then either scratch the seeds between two sheets of sandpaper and soak overnight. 


Note: All parts of these plants are poisonous to ingest, including the seeds. Buyer assumes liability. Be sure to not allow unsupervised children or pets around them.


I combine shipping on all seed orders, you pay one flat fee for as many seeds as you would like for no additional shipping. Orders over $35 for any combination of items in my shop ship for free to the US.


All of my seeds are tested and guaranteed. Most of my seeds are fresh off of my own plants.

My Castle Red Lupine Seeds, Perennial Lupine, Lupinus polyphyllus

SKU: LP0425
Out of Stock

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