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Salvia, Black & Blue

Short Description

Richest blue with florets with black sepals.

Full Description

Hands down, our test garden's most handsome plant: tall, dark green stems; bright sage green leaves; abundant 1 1/2" florets of the richest blue with truly black sepals just below the petals. Not only are they gorgeous, but they bloom relentlessly from late spring to early autumn. The tall, graceful plants, 4 ft. x 3 ft. work beautifully in large pots, but stunningly as borders or hedges.
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Item#: 21003
Order: 3 Plants
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$17.99
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Product properties

Sun The amount of sunlight this product needs daily in order to perform well in the garden. Full sun means 6 hours of direct sun per day; partial sun means 2-4 hours of direct sun per day; shade means little or no direct sun.

Full Sun, Part Sun

Height The typical height of this product at maturity.

42-48 inches

Spread The width of the plant at maturity.

28-36 inches

Ornamental Use Ways in which the product may be used in the garden for ornamental effect.

Borders

Life Cycle This refers to whether a plant is an annual, biennial or perennial. Annuals complete their life cycles in one year; biennials produce foliage the first year and bloom and go to seed the second year; perennials can live for more than two years.

Annual

Sow Method This refers to whether the seed should be sown early indoors and the seedlings transplanted outside later, or if the seed should be sown directly in the garden at the recommended planting time.

Direct Sow/Indoor Sow

Plant Shipping Information

Plants begin shipping week of:

May 07, 2018

Click here for Spring shipping schedule

Restrictions:

Item 21003 cannot ship to: AA, AE, AK, AP, AS, CN, FM, GU, HI, MH, MP, PR, PW, VI
See all Burpee plant shipping restrictions for your state

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Annuals Tour #1
Take a garden tour and see favorite annual plants in a garden setting. In this video- Zinnia, Angelonia, Marigold, Petunia, Celosia and Vinca.
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  • Perennials

    Salvia

    Salvia
    Start Indoors Start Indoors Starting seeds indoors is called Indoor Sow or Indirect Sow and these dates are when to sow seeds indoors in the spring or summer
    Transplant Transplant When to transplant bulbs or roots in the garden for spring
    Start Outdoors Start Outdoors Starting seeds outdoors is called Outdoor Sow or Direct Sow and these dates are when to sow seeds outdoors in the spring or summer
    Start Indoors Fall Start Indoors Fall Starting seeds indoors in the fall called Indoor Sow or Indirect Sow and these dates are when to sow seeds outdoors in the fall
    Transplant Fall Transplant Fall Transplant Fall-When to transplant bulbs or roots in the garden for fall
    Start Outdoors Fall Start Outdoors Fall Starting seeds outdoors in the fall is called Outdoor Sow or Direct Sow and these dates are when to sow seeds outdoors in the fall
    First Date: Mar-28 - Last Date: May-16
    First Date: Sep-17 - Last Date: Oct-29
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  • Annuals

    Salvia

    Salvia
    Start Indoors Start Indoors Starting seeds indoors is called Indoor Sow or Indirect Sow and these dates are when to sow seeds indoors in the spring or summer
    Transplant Transplant When to transplant bulbs or roots in the garden for spring
    Start Outdoors Start Outdoors Starting seeds outdoors is called Outdoor Sow or Direct Sow and these dates are when to sow seeds outdoors in the spring or summer
    Start Indoors Fall Start Indoors Fall Starting seeds indoors in the fall called Indoor Sow or Indirect Sow and these dates are when to sow seeds outdoors in the fall
    Transplant Fall Transplant Fall Transplant Fall-When to transplant bulbs or roots in the garden for fall
    Start Outdoors Fall Start Outdoors Fall Starting seeds outdoors in the fall is called Outdoor Sow or Direct Sow and these dates are when to sow seeds outdoors in the fall
    First Date: Mar-07 - Last Date: Mar-21
    First Date: May-09 - Last Date: Jun-01
    Jan
    Feb
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    May
    Jun
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    Sep
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How to Sow and Plant

Salvia may be grown from seed sown early indoors and transplanted outside after frost, or planted as a potted plant.

Sowing Seed Indoors:

  • Sow salvia indoors 10-12 weeks before the last frost.
  • Sow seed thinly and evenly and barely press into seed starting formula.
  • Keep evenly moist.
  • Seedlings emerge in 15-21 days.
  • As soon as seedlings emerge, provide plenty of light on a sunny windowsill or grow seedlings 3-4 inches beneath fluorescent plant lights turned on 16 hours per day, off for 8 hours at night. Raise the lights as the plants grow taller. Incandescent bulbs will not work for this process because they will get too hot. Most plants require a dark period to grow, do not leave lights on for 24 hours.
  • Seedlings do not need much fertilizer, feed when they are 3-4 weeks old using a starter solution (half strength of a complete indoor houseplant food) according to manufacturer’s directions.
  • If you are growing in small cells, you may need to transplant the seedlings to 3 or 4 inch pots when seedlings have at least 2 pairs of true leaves before transplanting to the garden so they have enough room to develop strong roots
  • Before planting in the garden, seedling plants need to be “hardened off”. Accustom young plants to outdoor conditions by moving them to a sheltered place outside for a week. Be sure to protect them from wind and hot sun at first. If frost threatens at night, cover or bring containers indoors, then take them out again in the morning. This hardening off process toughens the plant’s cell structure and reduces transplant shock and scalding.

Planting in the Garden:

  • Select a location in full sun with good rich moist organic, well-draining soil.
  • Prepare the bed by turning the soil under to a depth of 6-12, inches removing any debris, and lightly raking as level as possible.
  • The addition of organic matter (leaf mold, compost, well-rotted manure) benefits all gardens and is essential in recently constructed neighborhoods.
  • Plant on a cloudy day or in late afternoon to reduce transplant shock.
  • Dig a hole for each plant, approximately 12-16 inches apart large enough to amply accommodate the root ball.
  • Unpot the plant and gently loosen the root ball with your hands to encourage good root growth.
  • Place the top of the root ball even with the level of the surrounding soil. Fill with soil to the top of the root ball. Press soil down firmly with your hand.
  • Use the plant tag as a location marker.
  • Thoroughly water and apply a light mulch layer on top of the soil (1-2 inches) to conserve water and reduce weeds.
  • Keep weeds under control during the growing season. Weeds compete with plants for water, space and nutrients, so control them by either cultivating often or use a mulch to prevent their seeds from germinating.
  • Mulches also help retain soil moisture and maintain even soil temperatures. For annuals an organic mulch of shredded leaves lends a natural look to the bed and will improve the soil as it breaks down in time. Always keep mulches off a plant’s stems to prevent possible rot.
  • Keep plants well-watered during the growing season, especially during dry spells. Plants need about 1 inch of rain per week during the growing season. Use a rain gauge to check to see if you need to add water. It's best to water with a drip or trickle system that delivers water at low pressure at the soil level. If you water with overhead sprinklers, water early in the day so the foliage has time to dry off before evening, to minimize disease problems. Keep the soil moist but not saturated.
  • Until plants become established, some protection from extreme winds and direct, hot sunlight may be necessary. Good air movement is also important.
  • After new growth appears, a light fertilizer may be applied. Keep granular fertilizers away from the plant crown and foliage to avoid burn injury. Use low rates of a slow release, as higher rates may encourage root rots.
  • Remove spent flower spikes to encourage flowering and prevent seed development. Pinching the growing tips of plants can encourage bushiness.
  • Monitor for pests and diseases. Check with your local Cooperative Extension Service for pest controls recommended for your area.
  • Provide plants with extra water in dry weather.
  • Deadheading is recommended to keep plants blooming.
  • These versatile, colorful plants are widely grown in annual gardens, perennial gardens, mixed borders, formal mass plantings, herb gardens, wildflower gardens, cottage gardens, and containers.
  • Compact cultivars add excitement to window boxes.
  • Tall stemmed types are great for cutting.
Sun
Full Sun, Part Sun
Height
42-48 inches
Spread
28-36 inches
Ornamental Use
Borders
Life Cycle
Annual
Sow Method
Direct Sow/Indoor Sow
Flowering
Yes
Bloom Duration
12 weeks
Flower color
Black, Blue
Salvia, Black & Blue is rated 4.7 out of 5 by 20.
Rated 4 out of 5 by from Beautiful blue The hummingbirds love it and so do I! Great patio plant.
Date published: 2017-07-15
Rated 5 out of 5 by from Hummingbirds, bees, and butterflies Beautiful color. This is a limited care plant and great for Texas. perennial to zone 7 but can be killed by very low temperatures in a hard winter. Heat is not a problem. Do not over water or fertilize heavily because it will put all its energy into foliage and will not bloom or only sparsely bloom. Cut back spent flowers, if you have time, and it will rebloom profusely and quickly but it will continue to bloom without optional trimming.
Date published: 2017-06-02
Rated 4 out of 5 by from Beautiful and really attracts the Hummingbirds I bought three plants last year. Received them somewhat late in the season (early June). At first I was disappointed because I saw a lot of growth so I kept them watered and fertilized, but no flowering. Finally, they began blooming in August. Sadly, only one plant survived the winter, but it looks very healthy at this point. Hoping for a good season with the birds and this flower. If it does well this year, I plan to purchase another three plants next year. Will recommend but not happy with a 66% mortality rate.
Date published: 2017-05-06
Rated 5 out of 5 by from Excellent! Great hummingbird and butterfly magnet here in Zone 4B! This will be the 4th year we will grow this plant. We put 3 in a large patio pot and they fill in nicely.
Date published: 2017-03-12
Rated 1 out of 5 by from Expensive I ordered black and blue salvia and a hydrangea. Both were very small plants and 3x local price.
Date published: 2016-09-16
Rated 5 out of 5 by from Excellent for attracting hummingbirds I order these every season as they provide a vibrant blue when many other plants have lost their luster. Hummingbirds begin showing up every August and continue until our Minnesota chill really sets in. They are very striking plants on their own, and they have alwayss arrived in good shape. I happily recommend getting these.
Date published: 2016-09-15
Rated 5 out of 5 by from lush and pretty These have grown to be full and lovely with zero hassle.
Date published: 2016-09-15
Rated 5 out of 5 by from Lovely color I purchased Black and Blue Salvia several months ago and am very happy with how healthy and quickly they arrived. They've been doing wonderfully in my new gardens. Have recommended Burpee to many others!
Date published: 2016-09-15
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