Cardinal Aquarium Plant: Live Lobelia for Foreground, Midground, Paludarium and Terrarium Displays

Bring living greenery to your freshwater setup with Cardinal Plant, a versatile North American species suited to aquariums, paludariums, and terrariums. It can grow submerged or emersed, giving you flexibility when planning a planted habitat.

Its vibrant green foliage creates a fresh foreground or midground accent. Given enough height, the plant can also contribute to the background, making it useful as your aquascape develops.

Key Features

• Grows both submerged and emersed, so it can transition naturally between aquatic and semi-aquatic layouts.
• Works in foreground and midground positions, while taller growth can add greenery toward the back of an aquarium.
• Submerged leaves are vibrant green and may show red-purple tones underneath, bringing subtle color variation to planted displays.
• Emersed growth can produce the species’ distinctive red flowers, adding seasonal interest above the waterline.
• Regular top trimming encourages the plant to expand into a mat, while cut stems, new growth, and lateral shoots provide propagation options.
• Its easy care level and moderate growth rate make ongoing maintenance approachable, provided it receives medium to high light. Fertilizer can support coloration and plant health, and CO2 is recommended.

Specifications

• Common name: Cardinal Plant
• Scientific name: Lobelia cardinalis
• Family: Lobeliaceae
• Origin: North America
• Maximum height: 12 inches
• Shipping size: 2–3 inches
• Care level: Easy
• Light requirement: Medium to high
• CO2: Recommended
• Growth rate: Moderate
• pH range: 6–7.5
• Propagation: Cut stem, new growth, or lateral shoots
• Available formats: Pot, 3 Pot Package, or 5 Pot Package

Place this adaptable Cardinal Plant where its green foliage can complement your aquascape, then trim as needed to shape its growth through the foreground, midground, or taller background areas.