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Herboo Sweet Pea 'Royal Family' seed packet in burgundy.
Sweet Pea Royal Family Mix Seeds
Back of the Herboo Sweet Pea 'Royal Family' packet with its sowing calendar.
Sweet Pea Royal Family Seed Packet
Sweet Pea Royal Family Mix Seeds

Sweet Pea 'Royal Family' Seeds

Lathyrus Odoratus 'Royal Family'

Large, scented blooms in rich, vibrant colours. The Royal Family Sweet Pea produces strong, long stems and abundant flowers in shades of white, pink, red and deep maroon. Ideal for cutting, training up trellis or arches, and adding fragrance to borders and pots. Regular picking encourages even more blooms throughout summer.

Approx 20 seeds

  • Pollinator-Friendly
  • Cut Flowers
  • Tolerates Most Light
  • Compact for Pots

Sweet Pea 'Royal Family' Seeds – Quick Growing Guide

Sweet Pea 'Royal Family' seeds produce fragrant, vibrant flowers ideal for UK gardens. Sow from January to May or October to December, either directly outdoors or in pots. They prefer full sun and well-drained soil. Regular watering supports healthy growth, with blooms ready to harvest in 12–14 weeks for stunning cut flowers.

How to Sow, Grow and Harvest Sweet Pea 'Royal Family' Seeds

  • Sow:Jan–May, Oct–Dec under cover or in pots; Mar–May direct outdoors
  • Germination:10–21 days
  • Grow:Full sun, well-drained soil, support with canes or trellis
  • Water:Keep soil moist but not waterlogged
  • Harvest:12–14 weeks after sowing, cut flowers when buds show colour
  • Best for:Pots, beds, cut flower displays

Grow in Your Garden

Sweet Pea 'Royal Family' Seeds – Colourful, Fragrant Cut Flowers

Calendar

Sweet Pea 'Royal Family' Seeds planting calendar: Jan–May, Oct–Dec: Sow under cover or in pots • Mar–May: Direct sow outdoors • May–Sep: Flowers or harvest

Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Sow Under Cover / PotsDirect Sow / OutdoorsFlowers / Harvest

How to Grow

Start Sweet Pea 'Royal Family' seeds indoors from January to May or October to December in a cool, bright spot to develop strong, fragrant plants. These annual climbers thrive when grown in containers or garden beds with support for their climbing habit.

  • Sowing

    Sow seeds in deep pots or root trainers to encourage long roots, keeping seedlings cool and bright for optimal germination. Pinch out growing tips at 8–10cm to promote bushier plants before planting out in March to May.

  • Growing

    Plant out Sweet Pea 'Royal Family' in full sun within well-drained soil, ideally in pots of at least 40cm or garden beds. Provide support such as canes or netting for their climbing stems and tie them securely as they grow from May through September.

  • Plant care

    Water regularly during warm spells to maintain steady moisture, and feed with a high-potash liquid feed once buds form to encourage prolific flowering. Deadhead spent blooms before pods develop to prolong flowering, and pick flowers often to enjoy continuous sweet pea cut flowers throughout the summer.

About Sweet Pea 'Royal Family'

Big, scented blooms on long stems — made for cutting, training up canes, and filling borders with summer fragrance. Grows brilliantly in large pots with support.

  • Pollinator-Friendly
  • Cut Flowers
  • Tolerates Most Light
  • Compact for Pots

Eventual height & spread

0.5m
2m
Plant

History of Sweet Pea 'Royal Family'

Sweet Peas originate from southern Italy and Sicily, where their delightful fragrance and simple blooms first caught the attention of gardeners worldwide. Their history adds charm to every garden they grace.

Other NamesVetchling
Pet/Baby SafeKnown to be toxic

FAQs

Reviews

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Elsewhere in the range

Recent reviews of other Herboo seeds. These are not ratings of Sweet Pea 'Royal Family' Seeds.

26 Aug 2026

Can't go wrong with Cosmos

Lovely packet of seeds, bought one for me and one as gift :)

Gareth
20 Aug 2026

Good card gifts

Bought a couple of these as card gifts for friends and they loved them

Flavia
12 Mar 2026

Good tips

Liked how you gave tips on how best to sow. nicely done

Joel C.