Nicotiana sylvestris – Annual

Nicotiana sylvestris (Su,M,LC,XA) Night-scented tobacco 24″ tall x 12 – 36″ spread, mounded with bright leaves and white summer blooms from June to October. An annual in Colorado, it’s native to the Andes region in Argentina and Bolivia, in South America. Blooms:  Summer  (Su) Moisture: Medium  (M) Soil Type: Loam and Clay (LC) Range: Non-Native… Continue reading Nicotiana sylvestris – Annual

Helianthus Annuus

Helianthus Annuus Sunflower (Su,D,AE,N) 2 – 8 ft H x 2 – 4 ft W. Annual. Bright yellow ray flowers surround a composite (many flowered) center. Blooming mid summer to fall. Great plant to bring in wildlife. Blooms:  Mid Summer to early fall  (Su) Moisture: Dry  (D) Soil Type: All soil types when local ecotype… Continue reading Helianthus Annuus

Container for a shady spot

A nice spot to sit

Originally posted: 8/1/2012 Planters are an easy way to add color to a garden. If you have an area of your yard that is shady and lacks color, I have a combination for you. When choosing planter combinations for shade brighter is better. There is nothing like lime green to add life to a darker… Continue reading Container for a shady spot

Pineapple Sage – Salvia Elegans

Pineapple sage returning in early May.

  Pineapple sage (Salvia elegans) is an annual I buy almost every year to smell its wonderfully sweet scent, and enjoy red trumpet like flowers in early fall.  This plant’s scent would make you wish for the invention of scratch and sniff internet images. Yet the most surprising garden find this spring has been the… Continue reading Pineapple Sage – Salvia Elegans

Sunflowers, a Study in Solar Efficiency

there's 137 degrees between florets in there somewhere.

How do you gather the most sun in the least amount of space? Who does it better than anything else?  What else than a flower named for it, a sunflower. Math Engineer, Alexander Mitsos, from MIT used numerical optimization to find  the most efficient space design for concentrating solar power plants, like Gemsolar in Spain.  In… Continue reading Sunflowers, a Study in Solar Efficiency